Home / 131,891.30-182,001.35-84,139.50

Finding the Fourth Proportional to 131,891.30, 182,001.35 and 84,139.50

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Solution

The fourth proportional to 131,891.30, 182,001.35 and 84,139.50 is: 116,107.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,891.30 : 182,001.35 = 84,139.50 : x
  2. Step 2: Convert to fraction form
    131,891.30/182,001.35 = 84,139.50/x
  3. Step 3: Cross multiply
    131,891.30x = 182,001.35 × 84,139.50
  4. Step 4: Simplify right side
    131,891.30x = 15,313,502,798.67
  5. Step 5: Solve for x
    x = 15,313,502,798.67/131,891.30
  6. Step 6: Final answer
    x = 116,107.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.