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Finding the Fourth Proportional to 158,209.95, 218,295.90 and 93,699.42

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Solution

The fourth proportional to 158,209.95, 218,295.90 and 93,699.42 is: 129,285.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,209.95 : 218,295.90 = 93,699.42 : x
  2. Step 2: Convert to fraction form
    158,209.95/218,295.90 = 93,699.42/x
  3. Step 3: Cross multiply
    158,209.95x = 218,295.90 × 93,699.42
  4. Step 4: Simplify right side
    158,209.95x = 20,454,199,218.38
  5. Step 5: Solve for x
    x = 20,454,199,218.38/158,209.95
  6. Step 6: Final answer
    x = 129,285.16

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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.