Home / 149,357.18-206,111.76-81,373.94

Finding the Fourth Proportional to 149,357.18, 206,111.76 and 81,373.94

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Solution

The fourth proportional to 149,357.18, 206,111.76 and 81,373.94 is: 112,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,357.18 : 206,111.76 = 81,373.94 : x
  2. Step 2: Convert to fraction form
    149,357.18/206,111.76 = 81,373.94/x
  3. Step 3: Cross multiply
    149,357.18x = 206,111.76 × 81,373.94
  4. Step 4: Simplify right side
    149,357.18x = 16,772,126,695.02
  5. Step 5: Solve for x
    x = 16,772,126,695.02/149,357.18
  6. Step 6: Final answer
    x = 112,295.42

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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.