Home / 106,548.74-147,068-62,981.66

Finding the Fourth Proportional to 106,548.74, 147,068 and 62,981.66

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Solution

The fourth proportional to 106,548.74, 147,068 and 62,981.66 is: 86,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,548.74 : 147,068 = 62,981.66 : x
  2. Step 2: Convert to fraction form
    106,548.74/147,068 = 62,981.66/x
  3. Step 3: Cross multiply
    106,548.74x = 147,068 × 62,981.66
  4. Step 4: Simplify right side
    106,548.74x = 9,262,586,772.88
  5. Step 5: Solve for x
    x = 9,262,586,772.88/106,548.74
  6. Step 6: Final answer
    x = 86,932.86

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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.