Home / 123,445.60-170,354.08-66,855.84

Finding the Fourth Proportional to 123,445.60, 170,354.08 and 66,855.84

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Solution

The fourth proportional to 123,445.60, 170,354.08 and 66,855.84 is: 92,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.60 : 170,354.08 = 66,855.84 : x
  2. Step 2: Convert to fraction form
    123,445.60/170,354.08 = 66,855.84/x
  3. Step 3: Cross multiply
    123,445.60x = 170,354.08 × 66,855.84
  4. Step 4: Simplify right side
    123,445.60x = 11,389,165,115.83
  5. Step 5: Solve for x
    x = 11,389,165,115.83/123,445.60
  6. Step 6: Final answer
    x = 92,260.60

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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.