Home / 121,144.76-181,665.30-42,235.64

Finding the Fourth Proportional to 121,144.76, 181,665.30 and 42,235.64

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Solution

The fourth proportional to 121,144.76, 181,665.30 and 42,235.64 is: 63,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,144.76 : 181,665.30 = 42,235.64 : x
  2. Step 2: Convert to fraction form
    121,144.76/181,665.30 = 42,235.64/x
  3. Step 3: Cross multiply
    121,144.76x = 181,665.30 × 42,235.64
  4. Step 4: Simplify right side
    121,144.76x = 7,672,750,211.29
  5. Step 5: Solve for x
    x = 7,672,750,211.29/121,144.76
  6. Step 6: Final answer
    x = 63,335.39

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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.