Home / 134,439.40-201,659.10-40,945.15

Finding the Fourth Proportional to 134,439.40, 201,659.10 and 40,945.15

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Solution

The fourth proportional to 134,439.40, 201,659.10 and 40,945.15 is: 61,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,439.40 : 201,659.10 = 40,945.15 : x
  2. Step 2: Convert to fraction form
    134,439.40/201,659.10 = 40,945.15/x
  3. Step 3: Cross multiply
    134,439.40x = 201,659.10 × 40,945.15
  4. Step 4: Simplify right side
    134,439.40x = 8,256,962,098.37
  5. Step 5: Solve for x
    x = 8,256,962,098.37/134,439.40
  6. Step 6: Final answer
    x = 61,417.73

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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.