Home / 125,386.28-172,999.58-74,356.59

Finding the Fourth Proportional to 125,386.28, 172,999.58 and 74,356.59

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Solution

The fourth proportional to 125,386.28, 172,999.58 and 74,356.59 is: 102,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,386.28 : 172,999.58 = 74,356.59 : x
  2. Step 2: Convert to fraction form
    125,386.28/172,999.58 = 74,356.59/x
  3. Step 3: Cross multiply
    125,386.28x = 172,999.58 × 74,356.59
  4. Step 4: Simplify right side
    125,386.28x = 12,863,658,468.45
  5. Step 5: Solve for x
    x = 12,863,658,468.45/125,386.28
  6. Step 6: Final answer
    x = 102,592.24

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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.