Home / 87,204.21-120,275.90-75,125.13

Finding the Fourth Proportional to 87,204.21, 120,275.90 and 75,125.13

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Solution

The fourth proportional to 87,204.21, 120,275.90 and 75,125.13 is: 103,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,204.21 : 120,275.90 = 75,125.13 : x
  2. Step 2: Convert to fraction form
    87,204.21/120,275.90 = 75,125.13/x
  3. Step 3: Cross multiply
    87,204.21x = 120,275.90 × 75,125.13
  4. Step 4: Simplify right side
    87,204.21x = 9,035,742,623.37
  5. Step 5: Solve for x
    x = 9,035,742,623.37/87,204.21
  6. Step 6: Final answer
    x = 103,615.90

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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.