Home / 131,705.14-181,753.10-71,275.79

Finding the Fourth Proportional to 131,705.14, 181,753.10 and 71,275.79

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Solution

The fourth proportional to 131,705.14, 181,753.10 and 71,275.79 is: 98,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,705.14 : 181,753.10 = 71,275.79 : x
  2. Step 2: Convert to fraction form
    131,705.14/181,753.10 = 71,275.79/x
  3. Step 3: Cross multiply
    131,705.14x = 181,753.10 × 71,275.79
  4. Step 4: Simplify right side
    131,705.14x = 12,954,596,420.02
  5. Step 5: Solve for x
    x = 12,954,596,420.02/131,705.14
  6. Step 6: Final answer
    x = 98,360.60

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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.