Home / 154,162.96-231,239.16-65,359.28

Finding the Fourth Proportional to 154,162.96, 231,239.16 and 65,359.28

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Solution

The fourth proportional to 154,162.96, 231,239.16 and 65,359.28 is: 98,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,162.96 : 231,239.16 = 65,359.28 : x
  2. Step 2: Convert to fraction form
    154,162.96/231,239.16 = 65,359.28/x
  3. Step 3: Cross multiply
    154,162.96x = 231,239.16 × 65,359.28
  4. Step 4: Simplify right side
    154,162.96x = 15,113,625,005.40
  5. Step 5: Solve for x
    x = 15,113,625,005.40/154,162.96
  6. Step 6: Final answer
    x = 98,036.68

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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.