Home / 125,153.50-172,710.40-67,791.74

Finding the Fourth Proportional to 125,153.50, 172,710.40 and 67,791.74

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Solution

The fourth proportional to 125,153.50, 172,710.40 and 67,791.74 is: 93,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,153.50 : 172,710.40 = 67,791.74 : x
  2. Step 2: Convert to fraction form
    125,153.50/172,710.40 = 67,791.74/x
  3. Step 3: Cross multiply
    125,153.50x = 172,710.40 × 67,791.74
  4. Step 4: Simplify right side
    125,153.50x = 11,708,338,532.10
  5. Step 5: Solve for x
    x = 11,708,338,532.10/125,153.50
  6. Step 6: Final answer
    x = 93,551.83

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1.5x scale

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.