Home / 148,729.19-205,248.75-80,746.16

Finding the Fourth Proportional to 148,729.19, 205,248.75 and 80,746.16

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Solution

The fourth proportional to 148,729.19, 205,248.75 and 80,746.16 is: 111,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,729.19 : 205,248.75 = 80,746.16 : x
  2. Step 2: Convert to fraction form
    148,729.19/205,248.75 = 80,746.16/x
  3. Step 3: Cross multiply
    148,729.19x = 205,248.75 × 80,746.16
  4. Step 4: Simplify right side
    148,729.19x = 16,573,048,407.30
  5. Step 5: Solve for x
    x = 16,573,048,407.30/148,729.19
  6. Step 6: Final answer
    x = 111,431.04

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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.