Home / 152,883.10-211,078.60-99,320.77

Finding the Fourth Proportional to 152,883.10, 211,078.60 and 99,320.77

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Solution

The fourth proportional to 152,883.10, 211,078.60 and 99,320.77 is: 137,127.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,883.10 : 211,078.60 = 99,320.77 : x
  2. Step 2: Convert to fraction form
    152,883.10/211,078.60 = 99,320.77/x
  3. Step 3: Cross multiply
    152,883.10x = 211,078.60 × 99,320.77
  4. Step 4: Simplify right side
    152,883.10x = 20,964,489,082.52
  5. Step 5: Solve for x
    x = 20,964,489,082.52/152,883.10
  6. Step 6: Final answer
    x = 137,127.58

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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.