Home / 131,844.78-181,945.98-71,416.08

Finding the Fourth Proportional to 131,844.78, 181,945.98 and 71,416.08

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Solution

The fourth proportional to 131,844.78, 181,945.98 and 71,416.08 is: 98,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,844.78 : 181,945.98 = 71,416.08 : x
  2. Step 2: Convert to fraction form
    131,844.78/181,945.98 = 71,416.08/x
  3. Step 3: Cross multiply
    131,844.78x = 181,945.98 × 71,416.08
  4. Step 4: Simplify right side
    131,844.78x = 12,993,868,663.36
  5. Step 5: Solve for x
    x = 12,993,868,663.36/131,844.78
  6. Step 6: Final answer
    x = 98,554.29

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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.