Home / 124,372.50-171,638.69-70,666.61

Finding the Fourth Proportional to 124,372.50, 171,638.69 and 70,666.61

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Solution

The fourth proportional to 124,372.50, 171,638.69 and 70,666.61 is: 97,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,372.50 : 171,638.69 = 70,666.61 : x
  2. Step 2: Convert to fraction form
    124,372.50/171,638.69 = 70,666.61/x
  3. Step 3: Cross multiply
    124,372.50x = 171,638.69 × 70,666.61
  4. Step 4: Simplify right side
    124,372.50x = 12,129,124,442.90
  5. Step 5: Solve for x
    x = 12,129,124,442.90/124,372.50
  6. Step 6: Final answer
    x = 97,522.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.