Home / 115,659.40-173,618.70-89,480.20

Finding the Fourth Proportional to 115,659.40, 173,618.70 and 89,480.20

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Solution

The fourth proportional to 115,659.40, 173,618.70 and 89,480.20 is: 134,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,659.40 : 173,618.70 = 89,480.20 : x
  2. Step 2: Convert to fraction form
    115,659.40/173,618.70 = 89,480.20/x
  3. Step 3: Cross multiply
    115,659.40x = 173,618.70 × 89,480.20
  4. Step 4: Simplify right side
    115,659.40x = 15,535,435,999.74
  5. Step 5: Solve for x
    x = 15,535,435,999.74/115,659.40
  6. Step 6: Final answer
    x = 134,320.57

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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.