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Finding the Fourth Proportional to 172,355.40, 258,526.40 and 88,114.60

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Solution

The fourth proportional to 172,355.40, 258,526.40 and 88,114.60 is: 132,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,355.40 : 258,526.40 = 88,114.60 : x
  2. Step 2: Convert to fraction form
    172,355.40/258,526.40 = 88,114.60/x
  3. Step 3: Cross multiply
    172,355.40x = 258,526.40 × 88,114.60
  4. Step 4: Simplify right side
    172,355.40x = 22,779,950,325.44
  5. Step 5: Solve for x
    x = 22,779,950,325.44/172,355.40
  6. Step 6: Final answer
    x = 132,168.47

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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.