Home / 136,527.40-188,414.28-76,098.47

Finding the Fourth Proportional to 136,527.40, 188,414.28 and 76,098.47

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Solution

The fourth proportional to 136,527.40, 188,414.28 and 76,098.47 is: 105,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,527.40 : 188,414.28 = 76,098.47 : x
  2. Step 2: Convert to fraction form
    136,527.40/188,414.28 = 76,098.47/x
  3. Step 3: Cross multiply
    136,527.40x = 188,414.28 × 76,098.47
  4. Step 4: Simplify right side
    136,527.40x = 14,338,038,053.66
  5. Step 5: Solve for x
    x = 14,338,038,053.66/136,527.40
  6. Step 6: Final answer
    x = 105,019.49

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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.