Home / 121,108.65-181,604.66-42,221.13

Finding the Fourth Proportional to 121,108.65, 181,604.66 and 42,221.13

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Solution

The fourth proportional to 121,108.65, 181,604.66 and 42,221.13 is: 63,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,108.65 : 181,604.66 = 42,221.13 : x
  2. Step 2: Convert to fraction form
    121,108.65/181,604.66 = 42,221.13/x
  3. Step 3: Cross multiply
    121,108.65x = 181,604.66 × 42,221.13
  4. Step 4: Simplify right side
    121,108.65x = 7,667,553,747.36
  5. Step 5: Solve for x
    x = 7,667,553,747.36/121,108.65
  6. Step 6: Final answer
    x = 63,311.36

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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.