Home / 151,813.10-227,857.35-76,985.30

Finding the Fourth Proportional to 151,813.10, 227,857.35 and 76,985.30

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Solution

The fourth proportional to 151,813.10, 227,857.35 and 76,985.30 is: 115,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.10 : 227,857.35 = 76,985.30 : x
  2. Step 2: Convert to fraction form
    151,813.10/227,857.35 = 76,985.30/x
  3. Step 3: Cross multiply
    151,813.10x = 227,857.35 × 76,985.30
  4. Step 4: Simplify right side
    151,813.10x = 17,541,666,446.96
  5. Step 5: Solve for x
    x = 17,541,666,446.96/151,813.10
  6. Step 6: Final answer
    x = 115,547.78

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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.