Home / 127,806.31-176,373.41-74,123.16

Finding the Fourth Proportional to 127,806.31, 176,373.41 and 74,123.16

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Solution

The fourth proportional to 127,806.31, 176,373.41 and 74,123.16 is: 102,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.31 : 176,373.41 = 74,123.16 : x
  2. Step 2: Convert to fraction form
    127,806.31/176,373.41 = 74,123.16/x
  3. Step 3: Cross multiply
    127,806.31x = 176,373.41 × 74,123.16
  4. Step 4: Simplify right side
    127,806.31x = 13,073,353,607.31
  5. Step 5: Solve for x
    x = 13,073,353,607.31/127,806.31
  6. Step 6: Final answer
    x = 102,290.36

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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.