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Finding the Fourth Proportional to 162,001.80, 242,613.90 and 78,798.60

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Solution

The fourth proportional to 162,001.80, 242,613.90 and 78,798.60 is: 118,008.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,001.80 : 242,613.90 = 78,798.60 : x
  2. Step 2: Convert to fraction form
    162,001.80/242,613.90 = 78,798.60/x
  3. Step 3: Cross multiply
    162,001.80x = 242,613.90 × 78,798.60
  4. Step 4: Simplify right side
    162,001.80x = 19,117,635,660.54
  5. Step 5: Solve for x
    x = 19,117,635,660.54/162,001.80
  6. Step 6: Final answer
    x = 118,008.79

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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.