Home / 139,320.06-192,419.76-93,920.04

Finding the Fourth Proportional to 139,320.06, 192,419.76 and 93,920.04

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Solution

The fourth proportional to 139,320.06, 192,419.76 and 93,920.04 is: 129,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,320.06 : 192,419.76 = 93,920.04 : x
  2. Step 2: Convert to fraction form
    139,320.06/192,419.76 = 93,920.04/x
  3. Step 3: Cross multiply
    139,320.06x = 192,419.76 × 93,920.04
  4. Step 4: Simplify right side
    139,320.06x = 18,072,071,555.99
  5. Step 5: Solve for x
    x = 18,072,071,555.99/139,320.06
  6. Step 6: Final answer
    x = 129,716.22

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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.