Home / 109,416.25-150,990.03-61,679.50

Finding the Fourth Proportional to 109,416.25, 150,990.03 and 61,679.50

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Solution

The fourth proportional to 109,416.25, 150,990.03 and 61,679.50 is: 85,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,416.25 : 150,990.03 = 61,679.50 : x
  2. Step 2: Convert to fraction form
    109,416.25/150,990.03 = 61,679.50/x
  3. Step 3: Cross multiply
    109,416.25x = 150,990.03 × 61,679.50
  4. Step 4: Simplify right side
    109,416.25x = 9,312,989,555.39
  5. Step 5: Solve for x
    x = 9,312,989,555.39/109,416.25
  6. Step 6: Final answer
    x = 85,115.23

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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.