Home / 121,369.72-181,814.28-57,240.04

Finding the Fourth Proportional to 121,369.72, 181,814.28 and 57,240.04

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Solution

The fourth proportional to 121,369.72, 181,814.28 and 57,240.04 is: 85,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,369.72 : 181,814.28 = 57,240.04 : x
  2. Step 2: Convert to fraction form
    121,369.72/181,814.28 = 57,240.04/x
  3. Step 3: Cross multiply
    121,369.72x = 181,814.28 × 57,240.04
  4. Step 4: Simplify right side
    121,369.72x = 10,407,056,659.77
  5. Step 5: Solve for x
    x = 10,407,056,659.77/121,369.72
  6. Step 6: Final answer
    x = 85,746.73

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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.