Home / 148,435.28-205,111.92-108,078.74

Finding the Fourth Proportional to 148,435.28, 205,111.92 and 108,078.74

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Solution

The fourth proportional to 148,435.28, 205,111.92 and 108,078.74 is: 149,346.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,435.28 : 205,111.92 = 108,078.74 : x
  2. Step 2: Convert to fraction form
    148,435.28/205,111.92 = 108,078.74/x
  3. Step 3: Cross multiply
    148,435.28x = 205,111.92 × 108,078.74
  4. Step 4: Simplify right side
    148,435.28x = 22,168,237,872.58
  5. Step 5: Solve for x
    x = 22,168,237,872.58/148,435.28
  6. Step 6: Final answer
    x = 149,346.15

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1.5x scale

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.