Home / 131,873.61-181,985.37-71,445.79

Finding the Fourth Proportional to 131,873.61, 181,985.37 and 71,445.79

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Solution

The fourth proportional to 131,873.61, 181,985.37 and 71,445.79 is: 98,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,873.61 : 181,985.37 = 71,445.79 : x
  2. Step 2: Convert to fraction form
    131,873.61/181,985.37 = 71,445.79/x
  3. Step 3: Cross multiply
    131,873.61x = 181,985.37 × 71,445.79
  4. Step 4: Simplify right side
    131,873.61x = 13,002,088,528.09
  5. Step 5: Solve for x
    x = 13,002,088,528.09/131,873.61
  6. Step 6: Final answer
    x = 98,595.08

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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.