Home / 207,980.24-312,003-89,685.20

Finding the Fourth Proportional to 207,980.24, 312,003 and 89,685.20

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Solution

The fourth proportional to 207,980.24, 312,003 and 89,685.20 is: 134,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,980.24 : 312,003 = 89,685.20 : x
  2. Step 2: Convert to fraction form
    207,980.24/312,003 = 89,685.20/x
  3. Step 3: Cross multiply
    207,980.24x = 312,003 × 89,685.20
  4. Step 4: Simplify right side
    207,980.24x = 27,982,051,455.60
  5. Step 5: Solve for x
    x = 27,982,051,455.60/207,980.24
  6. Step 6: Final answer
    x = 134,541.88

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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.