Home / 134,617.59-185,761.47-78,032.61

Finding the Fourth Proportional to 134,617.59, 185,761.47 and 78,032.61

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Solution

The fourth proportional to 134,617.59, 185,761.47 and 78,032.61 is: 107,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,617.59 : 185,761.47 = 78,032.61 : x
  2. Step 2: Convert to fraction form
    134,617.59/185,761.47 = 78,032.61/x
  3. Step 3: Cross multiply
    134,617.59x = 185,761.47 × 78,032.61
  4. Step 4: Simplify right side
    134,617.59x = 14,495,452,341.54
  5. Step 5: Solve for x
    x = 14,495,452,341.54/134,617.59
  6. Step 6: Final answer
    x = 107,678.74

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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.