Home / 438,082.10-657,074.55-122,570.90

Finding the Fourth Proportional to 438,082.10, 657,074.55 and 122,570.90

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Solution

The fourth proportional to 438,082.10, 657,074.55 and 122,570.90 is: 183,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,082.10 : 657,074.55 = 122,570.90 : x
  2. Step 2: Convert to fraction form
    438,082.10/657,074.55 = 122,570.90/x
  3. Step 3: Cross multiply
    438,082.10x = 657,074.55 × 122,570.90
  4. Step 4: Simplify right side
    438,082.10x = 80,538,218,960.60
  5. Step 5: Solve for x
    x = 80,538,218,960.60/438,082.10
  6. Step 6: Final answer
    x = 183,842.75

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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.