Home / 131,809.55-181,897.36-71,380.29

Finding the Fourth Proportional to 131,809.55, 181,897.36 and 71,380.29

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Solution

The fourth proportional to 131,809.55, 181,897.36 and 71,380.29 is: 98,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,809.55 : 181,897.36 = 71,380.29 : x
  2. Step 2: Convert to fraction form
    131,809.55/181,897.36 = 71,380.29/x
  3. Step 3: Cross multiply
    131,809.55x = 181,897.36 × 71,380.29
  4. Step 4: Simplify right side
    131,809.55x = 12,983,886,307.03
  5. Step 5: Solve for x
    x = 12,983,886,307.03/131,809.55
  6. Step 6: Final answer
    x = 98,504.90

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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.