Home / 113,431.40-156,534.05-62,443.04

Finding the Fourth Proportional to 113,431.40, 156,534.05 and 62,443.04

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Solution

The fourth proportional to 113,431.40, 156,534.05 and 62,443.04 is: 86,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,431.40 : 156,534.05 = 62,443.04 : x
  2. Step 2: Convert to fraction form
    113,431.40/156,534.05 = 62,443.04/x
  3. Step 3: Cross multiply
    113,431.40x = 156,534.05 × 62,443.04
  4. Step 4: Simplify right side
    113,431.40x = 9,774,461,318.95
  5. Step 5: Solve for x
    x = 9,774,461,318.95/113,431.40
  6. Step 6: Final answer
    x = 86,170.69

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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.