Home / 145,882.35-217,289.32-139,056.75

Finding the Fourth Proportional to 145,882.35, 217,289.32 and 139,056.75

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Solution

The fourth proportional to 145,882.35, 217,289.32 and 139,056.75 is: 207,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,882.35 : 217,289.32 = 139,056.75 : x
  2. Step 2: Convert to fraction form
    145,882.35/217,289.32 = 139,056.75/x
  3. Step 3: Cross multiply
    145,882.35x = 217,289.32 × 139,056.75
  4. Step 4: Simplify right side
    145,882.35x = 30,215,546,301.27
  5. Step 5: Solve for x
    x = 30,215,546,301.27/145,882.35
  6. Step 6: Final answer
    x = 207,122.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.