Home / 131,776.76-181,852.02-71,347.43

Finding the Fourth Proportional to 131,776.76, 181,852.02 and 71,347.43

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Solution

The fourth proportional to 131,776.76, 181,852.02 and 71,347.43 is: 98,459.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,776.76 : 181,852.02 = 71,347.43 : x
  2. Step 2: Convert to fraction form
    131,776.76/181,852.02 = 71,347.43/x
  3. Step 3: Cross multiply
    131,776.76x = 181,852.02 × 71,347.43
  4. Step 4: Simplify right side
    131,776.76x = 12,974,673,358.05
  5. Step 5: Solve for x
    x = 12,974,673,358.05/131,776.76
  6. Step 6: Final answer
    x = 98,459.50

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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.