Home / 113,188.32-156,182.40-65,432.40

Finding the Fourth Proportional to 113,188.32, 156,182.40 and 65,432.40

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Solution

The fourth proportional to 113,188.32, 156,182.40 and 65,432.40 is: 90,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,188.32 : 156,182.40 = 65,432.40 : x
  2. Step 2: Convert to fraction form
    113,188.32/156,182.40 = 65,432.40/x
  3. Step 3: Cross multiply
    113,188.32x = 156,182.40 × 65,432.40
  4. Step 4: Simplify right side
    113,188.32x = 10,219,389,269.76
  5. Step 5: Solve for x
    x = 10,219,389,269.76/113,188.32
  6. Step 6: Final answer
    x = 90,286.61

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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.