Home / 145,301.85-200,532.77-87,972.75

Finding the Fourth Proportional to 145,301.85, 200,532.77 and 87,972.75

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Solution

The fourth proportional to 145,301.85, 200,532.77 and 87,972.75 is: 121,412.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,301.85 : 200,532.77 = 87,972.75 : x
  2. Step 2: Convert to fraction form
    145,301.85/200,532.77 = 87,972.75/x
  3. Step 3: Cross multiply
    145,301.85x = 200,532.77 × 87,972.75
  4. Step 4: Simplify right side
    145,301.85x = 17,641,419,242.02
  5. Step 5: Solve for x
    x = 17,641,419,242.02/145,301.85
  6. Step 6: Final answer
    x = 121,412.21

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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.