Home / 175,727.76-242,521.60-100,287.60

Finding the Fourth Proportional to 175,727.76, 242,521.60 and 100,287.60

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Solution

The fourth proportional to 175,727.76, 242,521.60 and 100,287.60 is: 138,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,727.76 : 242,521.60 = 100,287.60 : x
  2. Step 2: Convert to fraction form
    175,727.76/242,521.60 = 100,287.60/x
  3. Step 3: Cross multiply
    175,727.76x = 242,521.60 × 100,287.60
  4. Step 4: Simplify right side
    175,727.76x = 24,321,909,212.16
  5. Step 5: Solve for x
    x = 24,321,909,212.16/175,727.76
  6. Step 6: Final answer
    x = 138,406.76

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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.