Home / 125,715.45-173,497.17-72,017.76

Finding the Fourth Proportional to 125,715.45, 173,497.17 and 72,017.76

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Solution

The fourth proportional to 125,715.45, 173,497.17 and 72,017.76 is: 99,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,715.45 : 173,497.17 = 72,017.76 : x
  2. Step 2: Convert to fraction form
    125,715.45/173,497.17 = 72,017.76/x
  3. Step 3: Cross multiply
    125,715.45x = 173,497.17 × 72,017.76
  4. Step 4: Simplify right side
    125,715.45x = 12,494,877,549.74
  5. Step 5: Solve for x
    x = 12,494,877,549.74/125,715.45
  6. Step 6: Final answer
    x = 99,390.15

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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.