Home / 125,178,254.84-172,723,150.53-72,235,648.28

Finding the Fourth Proportional to 125,178,254.84, 172,723,150.53 and 72,235,648.28

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Solution

The fourth proportional to 125,178,254.84, 172,723,150.53 and 72,235,648.28 is: 99,672,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,178,254.84 : 172,723,150.53 = 72,235,648.28 : x
  2. Step 2: Convert to fraction form
    125,178,254.84/172,723,150.53 = 72,235,648.28/x
  3. Step 3: Cross multiply
    125,178,254.84x = 172,723,150.53 × 72,235,648.28
  4. Step 4: Simplify right side
    125,178,254.84x = 12,476,768,751,930,384
  5. Step 5: Solve for x
    x = 12,476,768,751,930,384/125,178,254.84
  6. Step 6: Final answer
    x = 99,672,013.86

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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.