Home / 131,575.78-181,574.70-71,146.39

Finding the Fourth Proportional to 131,575.78, 181,574.70 and 71,146.39

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Solution

The fourth proportional to 131,575.78, 181,574.70 and 71,146.39 is: 98,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,575.78 : 181,574.70 = 71,146.39 : x
  2. Step 2: Convert to fraction form
    131,575.78/181,574.70 = 71,146.39/x
  3. Step 3: Cross multiply
    131,575.78x = 181,574.70 × 71,146.39
  4. Step 4: Simplify right side
    131,575.78x = 12,918,384,420.33
  5. Step 5: Solve for x
    x = 12,918,384,420.33/131,575.78
  6. Step 6: Final answer
    x = 98,182.09

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1.5x scale

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.