Home / 113,701.90-156,906.64-62,719.28

Finding the Fourth Proportional to 113,701.90, 156,906.64 and 62,719.28

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Solution

The fourth proportional to 113,701.90, 156,906.64 and 62,719.28 is: 86,551.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,701.90 : 156,906.64 = 62,719.28 : x
  2. Step 2: Convert to fraction form
    113,701.90/156,906.64 = 62,719.28/x
  3. Step 3: Cross multiply
    113,701.90x = 156,906.64 × 62,719.28
  4. Step 4: Simplify right side
    113,701.90x = 9,841,071,488.02
  5. Step 5: Solve for x
    x = 9,841,071,488.02/113,701.90
  6. Step 6: Final answer
    x = 86,551.51

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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.