Home / 113,761.71-157,001.09-62,779.23

Finding the Fourth Proportional to 113,761.71, 157,001.09 and 62,779.23

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Solution

The fourth proportional to 113,761.71, 157,001.09 and 62,779.23 is: 86,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,761.71 : 157,001.09 = 62,779.23 : x
  2. Step 2: Convert to fraction form
    113,761.71/157,001.09 = 62,779.23/x
  3. Step 3: Cross multiply
    113,761.71x = 157,001.09 × 62,779.23
  4. Step 4: Simplify right side
    113,761.71x = 9,856,407,225.46
  5. Step 5: Solve for x
    x = 9,856,407,225.46/113,761.71
  6. Step 6: Final answer
    x = 86,640.81

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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.