Home / 131,471.53-181,445.13-76,293.01

Finding the Fourth Proportional to 131,471.53, 181,445.13 and 76,293.01

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Solution

The fourth proportional to 131,471.53, 181,445.13 and 76,293.01 is: 105,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471.53 : 181,445.13 = 76,293.01 : x
  2. Step 2: Convert to fraction form
    131,471.53/181,445.13 = 76,293.01/x
  3. Step 3: Cross multiply
    131,471.53x = 181,445.13 × 76,293.01
  4. Step 4: Simplify right side
    131,471.53x = 13,842,995,117.54
  5. Step 5: Solve for x
    x = 13,842,995,117.54/131,471.53
  6. Step 6: Final answer
    x = 105,292.72

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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.