Home / 118,545.22-163,776.61-99,395.30

Finding the Fourth Proportional to 118,545.22, 163,776.61 and 99,395.30

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Solution

The fourth proportional to 118,545.22, 163,776.61 and 99,395.30 is: 137,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,545.22 : 163,776.61 = 99,395.30 : x
  2. Step 2: Convert to fraction form
    118,545.22/163,776.61 = 99,395.30/x
  3. Step 3: Cross multiply
    118,545.22x = 163,776.61 × 99,395.30
  4. Step 4: Simplify right side
    118,545.22x = 16,278,625,444.89
  5. Step 5: Solve for x
    x = 16,278,625,444.89/118,545.22
  6. Step 6: Final answer
    x = 137,319.97

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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.