Home / 113,625.80-156,804.70-62,640.53

Finding the Fourth Proportional to 113,625.80, 156,804.70 and 62,640.53

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Solution

The fourth proportional to 113,625.80, 156,804.70 and 62,640.53 is: 86,444.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,625.80 : 156,804.70 = 62,640.53 : x
  2. Step 2: Convert to fraction form
    113,625.80/156,804.70 = 62,640.53/x
  3. Step 3: Cross multiply
    113,625.80x = 156,804.70 × 62,640.53
  4. Step 4: Simplify right side
    113,625.80x = 9,822,328,730.47
  5. Step 5: Solve for x
    x = 9,822,328,730.47/113,625.80
  6. Step 6: Final answer
    x = 86,444.53

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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.