Home / 151,991.18-209,639.02-106,679.28

Finding the Fourth Proportional to 151,991.18, 209,639.02 and 106,679.28

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Solution

The fourth proportional to 151,991.18, 209,639.02 and 106,679.28 is: 147,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,991.18 : 209,639.02 = 106,679.28 : x
  2. Step 2: Convert to fraction form
    151,991.18/209,639.02 = 106,679.28/x
  3. Step 3: Cross multiply
    151,991.18x = 209,639.02 × 106,679.28
  4. Step 4: Simplify right side
    151,991.18x = 22,364,139,180.11
  5. Step 5: Solve for x
    x = 22,364,139,180.11/151,991.18
  6. Step 6: Final answer
    x = 147,141.04

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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.