Home / 125,197,067.76-172,771,953.50-72,988,303.92

Finding the Fourth Proportional to 125,197,067.76, 172,771,953.50 and 72,988,303.92

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Solution

The fourth proportional to 125,197,067.76, 172,771,953.50 and 72,988,303.92 is: 100,723,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,197,067.76 : 172,771,953.50 = 72,988,303.92 : x
  2. Step 2: Convert to fraction form
    125,197,067.76/172,771,953.50 = 72,988,303.92/x
  3. Step 3: Cross multiply
    125,197,067.76x = 172,771,953.50 × 72,988,303.92
  4. Step 4: Simplify right side
    125,197,067.76x = 12,610,331,850,910,108
  5. Step 5: Solve for x
    x = 12,610,331,850,910,108/125,197,067.76
  6. Step 6: Final answer
    x = 100,723,859.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.