Home / 112,420.47-155,149.10-64,024.46

Finding the Fourth Proportional to 112,420.47, 155,149.10 and 64,024.46

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Solution

The fourth proportional to 112,420.47, 155,149.10 and 64,024.46 is: 88,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,420.47 : 155,149.10 = 64,024.46 : x
  2. Step 2: Convert to fraction form
    112,420.47/155,149.10 = 64,024.46/x
  3. Step 3: Cross multiply
    112,420.47x = 155,149.10 × 64,024.46
  4. Step 4: Simplify right side
    112,420.47x = 9,933,337,433.16
  5. Step 5: Solve for x
    x = 9,933,337,433.16/112,420.47
  6. Step 6: Final answer
    x = 88,358.79

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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.