Home / 130,189.12-195,366.60-87,009.53

Finding the Fourth Proportional to 130,189.12, 195,366.60 and 87,009.53

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Solution

The fourth proportional to 130,189.12, 195,366.60 and 87,009.53 is: 130,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,189.12 : 195,366.60 = 87,009.53 : x
  2. Step 2: Convert to fraction form
    130,189.12/195,366.60 = 87,009.53/x
  3. Step 3: Cross multiply
    130,189.12x = 195,366.60 × 87,009.53
  4. Step 4: Simplify right side
    130,189.12x = 16,998,755,066.87
  5. Step 5: Solve for x
    x = 16,998,755,066.87/130,189.12
  6. Step 6: Final answer
    x = 130,569.71

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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.