Home / 149,381.31-224,071.21-86,160.48

Finding the Fourth Proportional to 149,381.31, 224,071.21 and 86,160.48

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Solution

The fourth proportional to 149,381.31, 224,071.21 and 86,160.48 is: 129,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,381.31 : 224,071.21 = 86,160.48 : x
  2. Step 2: Convert to fraction form
    149,381.31/224,071.21 = 86,160.48/x
  3. Step 3: Cross multiply
    149,381.31x = 224,071.21 × 86,160.48
  4. Step 4: Simplify right side
    149,381.31x = 19,306,082,275.21
  5. Step 5: Solve for x
    x = 19,306,082,275.21/149,381.31
  6. Step 6: Final answer
    x = 129,240.28

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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.