Home / 109,990.13-151,788.20-59,689.13

Finding the Fourth Proportional to 109,990.13, 151,788.20 and 59,689.13

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Solution

The fourth proportional to 109,990.13, 151,788.20 and 59,689.13 is: 82,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,990.13 : 151,788.20 = 59,689.13 : x
  2. Step 2: Convert to fraction form
    109,990.13/151,788.20 = 59,689.13/x
  3. Step 3: Cross multiply
    109,990.13x = 151,788.20 × 59,689.13
  4. Step 4: Simplify right side
    109,990.13x = 9,060,104,544.88
  5. Step 5: Solve for x
    x = 9,060,104,544.88/109,990.13
  6. Step 6: Final answer
    x = 82,371.98

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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.