Home / 109,149.90-150,635.61-61,400.40

Finding the Fourth Proportional to 109,149.90, 150,635.61 and 61,400.40

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Solution

The fourth proportional to 109,149.90, 150,635.61 and 61,400.40 is: 84,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,149.90 : 150,635.61 = 61,400.40 : x
  2. Step 2: Convert to fraction form
    109,149.90/150,635.61 = 61,400.40/x
  3. Step 3: Cross multiply
    109,149.90x = 150,635.61 × 61,400.40
  4. Step 4: Simplify right side
    109,149.90x = 9,249,086,708.24
  5. Step 5: Solve for x
    x = 9,249,086,708.24/109,149.90
  6. Step 6: Final answer
    x = 84,737.47

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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.