Home / 160,538.20-240,720.90-66,938.20

Finding the Fourth Proportional to 160,538.20, 240,720.90 and 66,938.20

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Solution

The fourth proportional to 160,538.20, 240,720.90 and 66,938.20 is: 100,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,538.20 : 240,720.90 = 66,938.20 : x
  2. Step 2: Convert to fraction form
    160,538.20/240,720.90 = 66,938.20/x
  3. Step 3: Cross multiply
    160,538.20x = 240,720.90 × 66,938.20
  4. Step 4: Simplify right side
    160,538.20x = 16,113,423,748.38
  5. Step 5: Solve for x
    x = 16,113,423,748.38/160,538.20
  6. Step 6: Final answer
    x = 100,371.27

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1.5x scale

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.