Home / 157,766.12-217,726.08-86,152.80

Finding the Fourth Proportional to 157,766.12, 217,726.08 and 86,152.80

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Solution

The fourth proportional to 157,766.12, 217,726.08 and 86,152.80 is: 118,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,766.12 : 217,726.08 = 86,152.80 : x
  2. Step 2: Convert to fraction form
    157,766.12/217,726.08 = 86,152.80/x
  3. Step 3: Cross multiply
    157,766.12x = 217,726.08 × 86,152.80
  4. Step 4: Simplify right side
    157,766.12x = 18,757,711,425.02
  5. Step 5: Solve for x
    x = 18,757,711,425.02/157,766.12
  6. Step 6: Final answer
    x = 118,895.69

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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.