Home / 159,679.02-220,349.63-91,648.11

Finding the Fourth Proportional to 159,679.02, 220,349.63 and 91,648.11

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Solution

The fourth proportional to 159,679.02, 220,349.63 and 91,648.11 is: 126,470.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,679.02 : 220,349.63 = 91,648.11 : x
  2. Step 2: Convert to fraction form
    159,679.02/220,349.63 = 91,648.11/x
  3. Step 3: Cross multiply
    159,679.02x = 220,349.63 × 91,648.11
  4. Step 4: Simplify right side
    159,679.02x = 20,194,626,670.46
  5. Step 5: Solve for x
    x = 20,194,626,670.46/159,679.02
  6. Step 6: Final answer
    x = 126,470.13

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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.