Home / 113,479.11-156,577.44-65,729.61

Finding the Fourth Proportional to 113,479.11, 156,577.44 and 65,729.61

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Solution

The fourth proportional to 113,479.11, 156,577.44 and 65,729.61 is: 90,693.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,479.11 : 156,577.44 = 65,729.61 : x
  2. Step 2: Convert to fraction form
    113,479.11/156,577.44 = 65,729.61/x
  3. Step 3: Cross multiply
    113,479.11x = 156,577.44 × 65,729.61
  4. Step 4: Simplify right side
    113,479.11x = 10,291,774,066.00
  5. Step 5: Solve for x
    x = 10,291,774,066.00/113,479.11
  6. Step 6: Final answer
    x = 90,693.12

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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.