Home / 115,487.40-173,360.70-89,308.20

Finding the Fourth Proportional to 115,487.40, 173,360.70 and 89,308.20

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Solution

The fourth proportional to 115,487.40, 173,360.70 and 89,308.20 is: 134,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,487.40 : 173,360.70 = 89,308.20 : x
  2. Step 2: Convert to fraction form
    115,487.40/173,360.70 = 89,308.20/x
  3. Step 3: Cross multiply
    115,487.40x = 173,360.70 × 89,308.20
  4. Step 4: Simplify right side
    115,487.40x = 15,482,532,067.74
  5. Step 5: Solve for x
    x = 15,482,532,067.74/115,487.40
  6. Step 6: Final answer
    x = 134,062.52

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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.