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Finding the Fourth Proportional to 162,001.80, 242,970.30 and 77,761.80

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Solution

The fourth proportional to 162,001.80, 242,970.30 and 77,761.80 is: 116,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,001.80 : 242,970.30 = 77,761.80 : x
  2. Step 2: Convert to fraction form
    162,001.80/242,970.30 = 77,761.80/x
  3. Step 3: Cross multiply
    162,001.80x = 242,970.30 × 77,761.80
  4. Step 4: Simplify right side
    162,001.80x = 18,893,807,874.54
  5. Step 5: Solve for x
    x = 18,893,807,874.54/162,001.80
  6. Step 6: Final answer
    x = 116,627.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.