Home / 121,081.60-181,622.94-42,195.70

Finding the Fourth Proportional to 121,081.60, 181,622.94 and 42,195.70

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Solution

The fourth proportional to 121,081.60, 181,622.94 and 42,195.70 is: 63,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,081.60 : 181,622.94 = 42,195.70 : x
  2. Step 2: Convert to fraction form
    121,081.60/181,622.94 = 42,195.70/x
  3. Step 3: Cross multiply
    121,081.60x = 181,622.94 × 42,195.70
  4. Step 4: Simplify right side
    121,081.60x = 7,663,707,089.36
  5. Step 5: Solve for x
    x = 7,663,707,089.36/121,081.60
  6. Step 6: Final answer
    x = 63,293.74

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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.