Home / 125,688.64-173,440-73,997.52

Finding the Fourth Proportional to 125,688.64, 173,440 and 73,997.52

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Solution

The fourth proportional to 125,688.64, 173,440 and 73,997.52 is: 102,110.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,688.64 : 173,440 = 73,997.52 : x
  2. Step 2: Convert to fraction form
    125,688.64/173,440 = 73,997.52/x
  3. Step 3: Cross multiply
    125,688.64x = 173,440 × 73,997.52
  4. Step 4: Simplify right side
    125,688.64x = 12,834,129,868.80
  5. Step 5: Solve for x
    x = 12,834,129,868.80/125,688.64
  6. Step 6: Final answer
    x = 102,110.50

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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.