Home / 131,776.18-181,848.91-71,346.33

Finding the Fourth Proportional to 131,776.18, 181,848.91 and 71,346.33

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Solution

The fourth proportional to 131,776.18, 181,848.91 and 71,346.33 is: 98,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,776.18 : 181,848.91 = 71,346.33 : x
  2. Step 2: Convert to fraction form
    131,776.18/181,848.91 = 71,346.33/x
  3. Step 3: Cross multiply
    131,776.18x = 181,848.91 × 71,346.33
  4. Step 4: Simplify right side
    131,776.18x = 12,974,251,986.27
  5. Step 5: Solve for x
    x = 12,974,251,986.27/131,776.18
  6. Step 6: Final answer
    x = 98,456.74

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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.