Home / 145,789.28-218,713.56-55,825.60

Finding the Fourth Proportional to 145,789.28, 218,713.56 and 55,825.60

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Solution

The fourth proportional to 145,789.28, 218,713.56 and 55,825.60 is: 83,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,789.28 : 218,713.56 = 55,825.60 : x
  2. Step 2: Convert to fraction form
    145,789.28/218,713.56 = 55,825.60/x
  3. Step 3: Cross multiply
    145,789.28x = 218,713.56 × 55,825.60
  4. Step 4: Simplify right side
    145,789.28x = 12,209,815,715.14
  5. Step 5: Solve for x
    x = 12,209,815,715.14/145,789.28
  6. Step 6: Final answer
    x = 83,749.75

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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.