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Finding the Fourth Proportional to 177,757.10, 266,538.45 and 72,457.10

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Solution

The fourth proportional to 177,757.10, 266,538.45 and 72,457.10 is: 108,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,757.10 : 266,538.45 = 72,457.10 : x
  2. Step 2: Convert to fraction form
    177,757.10/266,538.45 = 72,457.10/x
  3. Step 3: Cross multiply
    177,757.10x = 266,538.45 × 72,457.10
  4. Step 4: Simplify right side
    177,757.10x = 19,312,603,125.50
  5. Step 5: Solve for x
    x = 19,312,603,125.50/177,757.10
  6. Step 6: Final answer
    x = 108,646.03

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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.