Home / 121,278.56-181,937.28-51,168.20

Finding the Fourth Proportional to 121,278.56, 181,937.28 and 51,168.20

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Solution

The fourth proportional to 121,278.56, 181,937.28 and 51,168.20 is: 76,760.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278.56 : 181,937.28 = 51,168.20 : x
  2. Step 2: Convert to fraction form
    121,278.56/181,937.28 = 51,168.20/x
  3. Step 3: Cross multiply
    121,278.56x = 181,937.28 × 51,168.20
  4. Step 4: Simplify right side
    121,278.56x = 9,309,403,130.50
  5. Step 5: Solve for x
    x = 9,309,403,130.50/121,278.56
  6. Step 6: Final answer
    x = 76,760.50

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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.