Home / 112,712.76-155,543.60-62,411.76

Finding the Fourth Proportional to 112,712.76, 155,543.60 and 62,411.76

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Solution

The fourth proportional to 112,712.76, 155,543.60 and 62,411.76 is: 86,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,712.76 : 155,543.60 = 62,411.76 : x
  2. Step 2: Convert to fraction form
    112,712.76/155,543.60 = 62,411.76/x
  3. Step 3: Cross multiply
    112,712.76x = 155,543.60 × 62,411.76
  4. Step 4: Simplify right side
    112,712.76x = 9,707,749,832.74
  5. Step 5: Solve for x
    x = 9,707,749,832.74/112,712.76
  6. Step 6: Final answer
    x = 86,128.22

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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.