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Finding the Fourth Proportional to 161,724.80, 242,554.80 and 77,484.80

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Solution

The fourth proportional to 161,724.80, 242,554.80 and 77,484.80 is: 116,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,724.80 : 242,554.80 = 77,484.80 : x
  2. Step 2: Convert to fraction form
    161,724.80/242,554.80 = 77,484.80/x
  3. Step 3: Cross multiply
    161,724.80x = 242,554.80 × 77,484.80
  4. Step 4: Simplify right side
    161,724.80x = 18,794,310,167.04
  5. Step 5: Solve for x
    x = 18,794,310,167.04/161,724.80
  6. Step 6: Final answer
    x = 116,211.68

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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.