Home / 109,987.20-151,782.34-59,686.20

Finding the Fourth Proportional to 109,987.20, 151,782.34 and 59,686.20

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Solution

The fourth proportional to 109,987.20, 151,782.34 and 59,686.20 is: 82,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,987.20 : 151,782.34 = 59,686.20 : x
  2. Step 2: Convert to fraction form
    109,987.20/151,782.34 = 59,686.20/x
  3. Step 3: Cross multiply
    109,987.20x = 151,782.34 × 59,686.20
  4. Step 4: Simplify right side
    109,987.20x = 9,059,311,101.71
  5. Step 5: Solve for x
    x = 9,059,311,101.71/109,987.20
  6. Step 6: Final answer
    x = 82,366.96

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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.