Home / 115,488.40-173,362.20-89,309.20

Finding the Fourth Proportional to 115,488.40, 173,362.20 and 89,309.20

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Solution

The fourth proportional to 115,488.40, 173,362.20 and 89,309.20 is: 134,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,488.40 : 173,362.20 = 89,309.20 : x
  2. Step 2: Convert to fraction form
    115,488.40/173,362.20 = 89,309.20/x
  3. Step 3: Cross multiply
    115,488.40x = 173,362.20 × 89,309.20
  4. Step 4: Simplify right side
    115,488.40x = 15,482,839,392.24
  5. Step 5: Solve for x
    x = 15,482,839,392.24/115,488.40
  6. Step 6: Final answer
    x = 134,064.02

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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.