Home / 148,694.13-205,162.47-85,030.56

Finding the Fourth Proportional to 148,694.13, 205,162.47 and 85,030.56

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Solution

The fourth proportional to 148,694.13, 205,162.47 and 85,030.56 is: 117,321.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,694.13 : 205,162.47 = 85,030.56 : x
  2. Step 2: Convert to fraction form
    148,694.13/205,162.47 = 85,030.56/x
  3. Step 3: Cross multiply
    148,694.13x = 205,162.47 × 85,030.56
  4. Step 4: Simplify right side
    148,694.13x = 17,445,079,715.08
  5. Step 5: Solve for x
    x = 17,445,079,715.08/148,694.13
  6. Step 6: Final answer
    x = 117,321.91

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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.