Home / 115,309.60-172,964.40-62,821.60

Finding the Fourth Proportional to 115,309.60, 172,964.40 and 62,821.60

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Solution

The fourth proportional to 115,309.60, 172,964.40 and 62,821.60 is: 94,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,309.60 : 172,964.40 = 62,821.60 : x
  2. Step 2: Convert to fraction form
    115,309.60/172,964.40 = 62,821.60/x
  3. Step 3: Cross multiply
    115,309.60x = 172,964.40 × 62,821.60
  4. Step 4: Simplify right side
    115,309.60x = 10,865,900,351.04
  5. Step 5: Solve for x
    x = 10,865,900,351.04/115,309.60
  6. Step 6: Final answer
    x = 94,232.40

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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.