Home / 125,915.28-173,763.72-72,202.32

Finding the Fourth Proportional to 125,915.28, 173,763.72 and 72,202.32

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Solution

The fourth proportional to 125,915.28, 173,763.72 and 72,202.32 is: 99,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,915.28 : 173,763.72 = 72,202.32 : x
  2. Step 2: Convert to fraction form
    125,915.28/173,763.72 = 72,202.32/x
  3. Step 3: Cross multiply
    125,915.28x = 173,763.72 × 72,202.32
  4. Step 4: Simplify right side
    125,915.28x = 12,546,143,715.83
  5. Step 5: Solve for x
    x = 12,546,143,715.83/125,915.28
  6. Step 6: Final answer
    x = 99,639.56

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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.