Home / 157,020.24-216,689.04-85,402.56

Finding the Fourth Proportional to 157,020.24, 216,689.04 and 85,402.56

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Solution

The fourth proportional to 157,020.24, 216,689.04 and 85,402.56 is: 117,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,020.24 : 216,689.04 = 85,402.56 : x
  2. Step 2: Convert to fraction form
    157,020.24/216,689.04 = 85,402.56/x
  3. Step 3: Cross multiply
    157,020.24x = 216,689.04 × 85,402.56
  4. Step 4: Simplify right side
    157,020.24x = 18,505,798,739.94
  5. Step 5: Solve for x
    x = 18,505,798,739.94/157,020.24
  6. Step 6: Final answer
    x = 117,856.14

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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.