Home / 102,680.15-141,697.50-57,362.68

Finding the Fourth Proportional to 102,680.15, 141,697.50 and 57,362.68

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Solution

The fourth proportional to 102,680.15, 141,697.50 and 57,362.68 is: 79,159.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,680.15 : 141,697.50 = 57,362.68 : x
  2. Step 2: Convert to fraction form
    102,680.15/141,697.50 = 57,362.68/x
  3. Step 3: Cross multiply
    102,680.15x = 141,697.50 × 57,362.68
  4. Step 4: Simplify right side
    102,680.15x = 8,128,147,640.81
  5. Step 5: Solve for x
    x = 8,128,147,640.81/102,680.15
  6. Step 6: Final answer
    x = 79,159.87

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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.