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Finding the Fourth Proportional to 88,232.40, 121,619.16 and 69,079.92

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Solution

The fourth proportional to 88,232.40, 121,619.16 and 69,079.92 is: 95,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,232.40 : 121,619.16 = 69,079.92 : x
  2. Step 2: Convert to fraction form
    88,232.40/121,619.16 = 69,079.92/x
  3. Step 3: Cross multiply
    88,232.40x = 121,619.16 × 69,079.92
  4. Step 4: Simplify right side
    88,232.40x = 8,401,441,843.27
  5. Step 5: Solve for x
    x = 8,401,441,843.27/88,232.40
  6. Step 6: Final answer
    x = 95,219.46

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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.