Home / 102,702.04-141,721.77-56,759.74

Finding the Fourth Proportional to 102,702.04, 141,721.77 and 56,759.74

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Solution

The fourth proportional to 102,702.04, 141,721.77 and 56,759.74 is: 78,324.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,702.04 : 141,721.77 = 56,759.74 : x
  2. Step 2: Convert to fraction form
    102,702.04/141,721.77 = 56,759.74/x
  3. Step 3: Cross multiply
    102,702.04x = 141,721.77 × 56,759.74
  4. Step 4: Simplify right side
    102,702.04x = 8,044,090,817.54
  5. Step 5: Solve for x
    x = 8,044,090,817.54/102,702.04
  6. Step 6: Final answer
    x = 78,324.55

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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.