Home / 145,240.56-200,427.98-80,708.14

Finding the Fourth Proportional to 145,240.56, 200,427.98 and 80,708.14

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Solution

The fourth proportional to 145,240.56, 200,427.98 and 80,708.14 is: 111,375.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,240.56 : 200,427.98 = 80,708.14 : x
  2. Step 2: Convert to fraction form
    145,240.56/200,427.98 = 80,708.14/x
  3. Step 3: Cross multiply
    145,240.56x = 200,427.98 × 80,708.14
  4. Step 4: Simplify right side
    145,240.56x = 16,176,169,469.76
  5. Step 5: Solve for x
    x = 16,176,169,469.76/145,240.56
  6. Step 6: Final answer
    x = 111,375.01

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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.