Home / 137,903.38-190,180.30-89,454.85

Finding the Fourth Proportional to 137,903.38, 190,180.30 and 89,454.85

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Solution

The fourth proportional to 137,903.38, 190,180.30 and 89,454.85 is: 123,365.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,903.38 : 190,180.30 = 89,454.85 : x
  2. Step 2: Convert to fraction form
    137,903.38/190,180.30 = 89,454.85/x
  3. Step 3: Cross multiply
    137,903.38x = 190,180.30 × 89,454.85
  4. Step 4: Simplify right side
    137,903.38x = 17,012,550,209.46
  5. Step 5: Solve for x
    x = 17,012,550,209.46/137,903.38
  6. Step 6: Final answer
    x = 123,365.72

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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.