Home / 149,521.18-206,328.81-84,119.86

Finding the Fourth Proportional to 149,521.18, 206,328.81 and 84,119.86

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Solution

The fourth proportional to 149,521.18, 206,328.81 and 84,119.86 is: 116,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,521.18 : 206,328.81 = 84,119.86 : x
  2. Step 2: Convert to fraction form
    149,521.18/206,328.81 = 84,119.86/x
  3. Step 3: Cross multiply
    149,521.18x = 206,328.81 × 84,119.86
  4. Step 4: Simplify right side
    149,521.18x = 17,356,350,611.17
  5. Step 5: Solve for x
    x = 17,356,350,611.17/149,521.18
  6. Step 6: Final answer
    x = 116,079.55

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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.