Home / 113,237.60-156,276.64-67,917.36

Finding the Fourth Proportional to 113,237.60, 156,276.64 and 67,917.36

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Solution

The fourth proportional to 113,237.60, 156,276.64 and 67,917.36 is: 93,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,237.60 : 156,276.64 = 67,917.36 : x
  2. Step 2: Convert to fraction form
    113,237.60/156,276.64 = 67,917.36/x
  3. Step 3: Cross multiply
    113,237.60x = 156,276.64 × 67,917.36
  4. Step 4: Simplify right side
    113,237.60x = 10,613,896,818.47
  5. Step 5: Solve for x
    x = 10,613,896,818.47/113,237.60
  6. Step 6: Final answer
    x = 93,731.21

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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.