Home / 104,711.87-144,423.18-72,500.39

Finding the Fourth Proportional to 104,711.87, 144,423.18 and 72,500.39

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Solution

The fourth proportional to 104,711.87, 144,423.18 and 72,500.39 is: 99,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,711.87 : 144,423.18 = 72,500.39 : x
  2. Step 2: Convert to fraction form
    104,711.87/144,423.18 = 72,500.39/x
  3. Step 3: Cross multiply
    104,711.87x = 144,423.18 × 72,500.39
  4. Step 4: Simplify right side
    104,711.87x = 10,470,737,372.04
  5. Step 5: Solve for x
    x = 10,470,737,372.04/104,711.87
  6. Step 6: Final answer
    x = 99,995.71

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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.