Home / 187,042.15-280,739.40-98,359.30

Finding the Fourth Proportional to 187,042.15, 280,739.40 and 98,359.30

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Solution

The fourth proportional to 187,042.15, 280,739.40 and 98,359.30 is: 147,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,042.15 : 280,739.40 = 98,359.30 : x
  2. Step 2: Convert to fraction form
    187,042.15/280,739.40 = 98,359.30/x
  3. Step 3: Cross multiply
    187,042.15x = 280,739.40 × 98,359.30
  4. Step 4: Simplify right side
    187,042.15x = 27,613,330,866.42
  5. Step 5: Solve for x
    x = 27,613,330,866.42/187,042.15
  6. Step 6: Final answer
    x = 147,631.59

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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.