Home / 131,575.57-181,574.16-71,146.07

Finding the Fourth Proportional to 131,575.57, 181,574.16 and 71,146.07

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Solution

The fourth proportional to 131,575.57, 181,574.16 and 71,146.07 is: 98,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,575.57 : 181,574.16 = 71,146.07 : x
  2. Step 2: Convert to fraction form
    131,575.57/181,574.16 = 71,146.07/x
  3. Step 3: Cross multiply
    131,575.57x = 181,574.16 × 71,146.07
  4. Step 4: Simplify right side
    131,575.57x = 12,918,287,403.79
  5. Step 5: Solve for x
    x = 12,918,287,403.79/131,575.57
  6. Step 6: Final answer
    x = 98,181.51

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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.