Home / 121,089.20-181,662.68-37,983.12

Finding the Fourth Proportional to 121,089.20, 181,662.68 and 37,983.12

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Solution

The fourth proportional to 121,089.20, 181,662.68 and 37,983.12 is: 56,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,089.20 : 181,662.68 = 37,983.12 : x
  2. Step 2: Convert to fraction form
    121,089.20/181,662.68 = 37,983.12/x
  3. Step 3: Cross multiply
    121,089.20x = 181,662.68 × 37,983.12
  4. Step 4: Simplify right side
    121,089.20x = 6,900,115,373.96
  5. Step 5: Solve for x
    x = 6,900,115,373.96/121,089.20
  6. Step 6: Final answer
    x = 56,983.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.