Home / 145,412.10-218,118.15-134,039.70

Finding the Fourth Proportional to 145,412.10, 218,118.15 and 134,039.70

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Solution

The fourth proportional to 145,412.10, 218,118.15 and 134,039.70 is: 201,059.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,412.10 : 218,118.15 = 134,039.70 : x
  2. Step 2: Convert to fraction form
    145,412.10/218,118.15 = 134,039.70/x
  3. Step 3: Cross multiply
    145,412.10x = 218,118.15 × 134,039.70
  4. Step 4: Simplify right side
    145,412.10x = 29,236,491,390.56
  5. Step 5: Solve for x
    x = 29,236,491,390.56/145,412.10
  6. Step 6: Final answer
    x = 201,059.55

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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.