Home / 115,499.40-173,378.70-89,320.20

Finding the Fourth Proportional to 115,499.40, 173,378.70 and 89,320.20

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Solution

The fourth proportional to 115,499.40, 173,378.70 and 89,320.20 is: 134,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,499.40 : 173,378.70 = 89,320.20 : x
  2. Step 2: Convert to fraction form
    115,499.40/173,378.70 = 89,320.20/x
  3. Step 3: Cross multiply
    115,499.40x = 173,378.70 × 89,320.20
  4. Step 4: Simplify right side
    115,499.40x = 15,486,220,159.74
  5. Step 5: Solve for x
    x = 15,486,220,159.74/115,499.40
  6. Step 6: Final answer
    x = 134,080.52

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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.