Home / 112,712.71-155,516.85-66,749.14

Finding the Fourth Proportional to 112,712.71, 155,516.85 and 66,749.14

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Solution

The fourth proportional to 112,712.71, 155,516.85 and 66,749.14 is: 92,098.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,712.71 : 155,516.85 = 66,749.14 : x
  2. Step 2: Convert to fraction form
    112,712.71/155,516.85 = 66,749.14/x
  3. Step 3: Cross multiply
    112,712.71x = 155,516.85 × 66,749.14
  4. Step 4: Simplify right side
    112,712.71x = 10,380,616,437.71
  5. Step 5: Solve for x
    x = 10,380,616,437.71/112,712.71
  6. Step 6: Final answer
    x = 92,098.01

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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.