Home / 112,800.60-169,200.90-90,657.23

Finding the Fourth Proportional to 112,800.60, 169,200.90 and 90,657.23

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Solution

The fourth proportional to 112,800.60, 169,200.90 and 90,657.23 is: 135,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,800.60 : 169,200.90 = 90,657.23 : x
  2. Step 2: Convert to fraction form
    112,800.60/169,200.90 = 90,657.23/x
  3. Step 3: Cross multiply
    112,800.60x = 169,200.90 × 90,657.23
  4. Step 4: Simplify right side
    112,800.60x = 15,339,284,061.50
  5. Step 5: Solve for x
    x = 15,339,284,061.50/112,800.60
  6. Step 6: Final answer
    x = 135,985.84

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.