Home / 129,365.07-193,832.29-45,078.77

Finding the Fourth Proportional to 129,365.07, 193,832.29 and 45,078.77

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Solution

The fourth proportional to 129,365.07, 193,832.29 and 45,078.77 is: 67,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,365.07 : 193,832.29 = 45,078.77 : x
  2. Step 2: Convert to fraction form
    129,365.07/193,832.29 = 45,078.77/x
  3. Step 3: Cross multiply
    129,365.07x = 193,832.29 × 45,078.77
  4. Step 4: Simplify right side
    129,365.07x = 8,737,721,219.48
  5. Step 5: Solve for x
    x = 8,737,721,219.48/129,365.07
  6. Step 6: Final answer
    x = 67,543.13

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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.