Home / 121,285.12-181,726.55-73,756.44

Finding the Fourth Proportional to 121,285.12, 181,726.55 and 73,756.44

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Solution

The fourth proportional to 121,285.12, 181,726.55 and 73,756.44 is: 110,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285.12 : 181,726.55 = 73,756.44 : x
  2. Step 2: Convert to fraction form
    121,285.12/181,726.55 = 73,756.44/x
  3. Step 3: Cross multiply
    121,285.12x = 181,726.55 × 73,756.44
  4. Step 4: Simplify right side
    121,285.12x = 13,403,503,381.48
  5. Step 5: Solve for x
    x = 13,403,503,381.48/121,285.12
  6. Step 6: Final answer
    x = 110,512.35

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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.