Home / 122,372.40-168,874.04-71,420.16

Finding the Fourth Proportional to 122,372.40, 168,874.04 and 71,420.16

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Solution

The fourth proportional to 122,372.40, 168,874.04 and 71,420.16 is: 98,559.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,372.40 : 168,874.04 = 71,420.16 : x
  2. Step 2: Convert to fraction form
    122,372.40/168,874.04 = 71,420.16/x
  3. Step 3: Cross multiply
    122,372.40x = 168,874.04 × 71,420.16
  4. Step 4: Simplify right side
    122,372.40x = 12,061,010,956.65
  5. Step 5: Solve for x
    x = 12,061,010,956.65/122,372.40
  6. Step 6: Final answer
    x = 98,559.90

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1.5x scale

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.