Home / 113,101.34-156,099.05-65,382.35

Finding the Fourth Proportional to 113,101.34, 156,099.05 and 65,382.35

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Solution

The fourth proportional to 113,101.34, 156,099.05 and 65,382.35 is: 90,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,101.34 : 156,099.05 = 65,382.35 : x
  2. Step 2: Convert to fraction form
    113,101.34/156,099.05 = 65,382.35/x
  3. Step 3: Cross multiply
    113,101.34x = 156,099.05 × 65,382.35
  4. Step 4: Simplify right side
    113,101.34x = 10,206,121,614.36
  5. Step 5: Solve for x
    x = 10,206,121,614.36/113,101.34
  6. Step 6: Final answer
    x = 90,238.74

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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.