Home / 138,869.60-207,976.35-94,254.80

Finding the Fourth Proportional to 138,869.60, 207,976.35 and 94,254.80

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Solution

The fourth proportional to 138,869.60, 207,976.35 and 94,254.80 is: 141,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,869.60 : 207,976.35 = 94,254.80 : x
  2. Step 2: Convert to fraction form
    138,869.60/207,976.35 = 94,254.80/x
  3. Step 3: Cross multiply
    138,869.60x = 207,976.35 × 94,254.80
  4. Step 4: Simplify right side
    138,869.60x = 19,602,769,273.98
  5. Step 5: Solve for x
    x = 19,602,769,273.98/138,869.60
  6. Step 6: Final answer
    x = 141,159.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.