Home / 124,765.64-172,127.76-76,935.95

Finding the Fourth Proportional to 124,765.64, 172,127.76 and 76,935.95

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Solution

The fourth proportional to 124,765.64, 172,127.76 and 76,935.95 is: 106,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.64 : 172,127.76 = 76,935.95 : x
  2. Step 2: Convert to fraction form
    124,765.64/172,127.76 = 76,935.95/x
  3. Step 3: Cross multiply
    124,765.64x = 172,127.76 × 76,935.95
  4. Step 4: Simplify right side
    124,765.64x = 13,242,812,736.97
  5. Step 5: Solve for x
    x = 13,242,812,736.97/124,765.64
  6. Step 6: Final answer
    x = 106,141.50

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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.