Home / 136,949.40-205,424.10-89,947.80

Finding the Fourth Proportional to 136,949.40, 205,424.10 and 89,947.80

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Solution

The fourth proportional to 136,949.40, 205,424.10 and 89,947.80 is: 134,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,949.40 : 205,424.10 = 89,947.80 : x
  2. Step 2: Convert to fraction form
    136,949.40/205,424.10 = 89,947.80/x
  3. Step 3: Cross multiply
    136,949.40x = 205,424.10 × 89,947.80
  4. Step 4: Simplify right side
    136,949.40x = 18,477,445,861.98
  5. Step 5: Solve for x
    x = 18,477,445,861.98/136,949.40
  6. Step 6: Final answer
    x = 134,921.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.