Home / 103,195.52-142,301.68-76,394.24

Finding the Fourth Proportional to 103,195.52, 142,301.68 and 76,394.24

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Solution

The fourth proportional to 103,195.52, 142,301.68 and 76,394.24 is: 105,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,195.52 : 142,301.68 = 76,394.24 : x
  2. Step 2: Convert to fraction form
    103,195.52/142,301.68 = 76,394.24/x
  3. Step 3: Cross multiply
    103,195.52x = 142,301.68 × 76,394.24
  4. Step 4: Simplify right side
    103,195.52x = 10,871,028,694.32
  5. Step 5: Solve for x
    x = 10,871,028,694.32/103,195.52
  6. Step 6: Final answer
    x = 105,344.00

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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.