Home / 115,542.04-159,440.52-67,139.68

Finding the Fourth Proportional to 115,542.04, 159,440.52 and 67,139.68

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Solution

The fourth proportional to 115,542.04, 159,440.52 and 67,139.68 is: 92,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,542.04 : 159,440.52 = 67,139.68 : x
  2. Step 2: Convert to fraction form
    115,542.04/159,440.52 = 67,139.68/x
  3. Step 3: Cross multiply
    115,542.04x = 159,440.52 × 67,139.68
  4. Step 4: Simplify right side
    115,542.04x = 10,704,785,491.83
  5. Step 5: Solve for x
    x = 10,704,785,491.83/115,542.04
  6. Step 6: Final answer
    x = 92,648.40

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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.