Home / 109,987.05-151,782.13-59,686.05

Finding the Fourth Proportional to 109,987.05, 151,782.13 and 59,686.05

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Solution

The fourth proportional to 109,987.05, 151,782.13 and 59,686.05 is: 82,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,987.05 : 151,782.13 = 59,686.05 : x
  2. Step 2: Convert to fraction form
    109,987.05/151,782.13 = 59,686.05/x
  3. Step 3: Cross multiply
    109,987.05x = 151,782.13 × 59,686.05
  4. Step 4: Simplify right side
    109,987.05x = 9,059,275,990.01
  5. Step 5: Solve for x
    x = 9,059,275,990.01/109,987.05
  6. Step 6: Final answer
    x = 82,366.75

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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.