Home / 113,207.60-156,235.16-67,887.30

Finding the Fourth Proportional to 113,207.60, 156,235.16 and 67,887.30

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Solution

The fourth proportional to 113,207.60, 156,235.16 and 67,887.30 is: 93,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,207.60 : 156,235.16 = 67,887.30 : x
  2. Step 2: Convert to fraction form
    113,207.60/156,235.16 = 67,887.30/x
  3. Step 3: Cross multiply
    113,207.60x = 156,235.16 × 67,887.30
  4. Step 4: Simplify right side
    113,207.60x = 10,606,383,177.47
  5. Step 5: Solve for x
    x = 10,606,383,177.47/113,207.60
  6. Step 6: Final answer
    x = 93,689.67

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1.5x scale

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.