Home / 154,429.88-231,207.89-98,130.42

Finding the Fourth Proportional to 154,429.88, 231,207.89 and 98,130.42

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Solution

The fourth proportional to 154,429.88, 231,207.89 and 98,130.42 is: 146,917.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,429.88 : 231,207.89 = 98,130.42 : x
  2. Step 2: Convert to fraction form
    154,429.88/231,207.89 = 98,130.42/x
  3. Step 3: Cross multiply
    154,429.88x = 231,207.89 × 98,130.42
  4. Step 4: Simplify right side
    154,429.88x = 22,688,526,862.36
  5. Step 5: Solve for x
    x = 22,688,526,862.36/154,429.88
  6. Step 6: Final answer
    x = 146,917.99

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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.