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Finding the Fourth Proportional to 161,813.55, 242,720.10 and 43,484.89

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Solution

The fourth proportional to 161,813.55, 242,720.10 and 43,484.89 is: 65,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,813.55 : 242,720.10 = 43,484.89 : x
  2. Step 2: Convert to fraction form
    161,813.55/242,720.10 = 43,484.89/x
  3. Step 3: Cross multiply
    161,813.55x = 242,720.10 × 43,484.89
  4. Step 4: Simplify right side
    161,813.55x = 10,554,656,849.29
  5. Step 5: Solve for x
    x = 10,554,656,849.29/161,813.55
  6. Step 6: Final answer
    x = 65,227.27

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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.