Home / 121,385.57-181,590.48-104,922.32

Finding the Fourth Proportional to 121,385.57, 181,590.48 and 104,922.32

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Solution

The fourth proportional to 121,385.57, 181,590.48 and 104,922.32 is: 156,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,385.57 : 181,590.48 = 104,922.32 : x
  2. Step 2: Convert to fraction form
    121,385.57/181,590.48 = 104,922.32/x
  3. Step 3: Cross multiply
    121,385.57x = 181,590.48 × 104,922.32
  4. Step 4: Simplify right side
    121,385.57x = 19,052,893,543.56
  5. Step 5: Solve for x
    x = 19,052,893,543.56/121,385.57
  6. Step 6: Final answer
    x = 156,961.77

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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.