Home / 113,656.34-156,781.50-71,141.06

Finding the Fourth Proportional to 113,656.34, 156,781.50 and 71,141.06

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Solution

The fourth proportional to 113,656.34, 156,781.50 and 71,141.06 is: 98,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,656.34 : 156,781.50 = 71,141.06 : x
  2. Step 2: Convert to fraction form
    113,656.34/156,781.50 = 71,141.06/x
  3. Step 3: Cross multiply
    113,656.34x = 156,781.50 × 71,141.06
  4. Step 4: Simplify right side
    113,656.34x = 11,153,602,098.39
  5. Step 5: Solve for x
    x = 11,153,602,098.39/113,656.34
  6. Step 6: Final answer
    x = 98,134.45

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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.