Home / 88,012.48-121,251.90-72,003.64

Finding the Fourth Proportional to 88,012.48, 121,251.90 and 72,003.64

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Solution

The fourth proportional to 88,012.48, 121,251.90 and 72,003.64 is: 99,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,012.48 : 121,251.90 = 72,003.64 : x
  2. Step 2: Convert to fraction form
    88,012.48/121,251.90 = 72,003.64/x
  3. Step 3: Cross multiply
    88,012.48x = 121,251.90 × 72,003.64
  4. Step 4: Simplify right side
    88,012.48x = 8,730,578,156.92
  5. Step 5: Solve for x
    x = 8,730,578,156.92/88,012.48
  6. Step 6: Final answer
    x = 99,197.05

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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.