Home / 145,581.36-217,983.60-85,560.24

Finding the Fourth Proportional to 145,581.36, 217,983.60 and 85,560.24

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Solution

The fourth proportional to 145,581.36, 217,983.60 and 85,560.24 is: 128,112.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,581.36 : 217,983.60 = 85,560.24 : x
  2. Step 2: Convert to fraction form
    145,581.36/217,983.60 = 85,560.24/x
  3. Step 3: Cross multiply
    145,581.36x = 217,983.60 × 85,560.24
  4. Step 4: Simplify right side
    145,581.36x = 18,650,729,132.06
  5. Step 5: Solve for x
    x = 18,650,729,132.06/145,581.36
  6. Step 6: Final answer
    x = 128,112.07

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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.