Home / 131,784.66-181,862.07-71,354.06

Finding the Fourth Proportional to 131,784.66, 181,862.07 and 71,354.06

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Solution

The fourth proportional to 131,784.66, 181,862.07 and 71,354.06 is: 98,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,784.66 : 181,862.07 = 71,354.06 : x
  2. Step 2: Convert to fraction form
    131,784.66/181,862.07 = 71,354.06/x
  3. Step 3: Cross multiply
    131,784.66x = 181,862.07 × 71,354.06
  4. Step 4: Simplify right side
    131,784.66x = 12,976,597,054.50
  5. Step 5: Solve for x
    x = 12,976,597,054.50/131,784.66
  6. Step 6: Final answer
    x = 98,468.19

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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.