Home / 98,842.85-136,400.62-55,235.77

Finding the Fourth Proportional to 98,842.85, 136,400.62 and 55,235.77

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Solution

The fourth proportional to 98,842.85, 136,400.62 and 55,235.77 is: 76,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,842.85 : 136,400.62 = 55,235.77 : x
  2. Step 2: Convert to fraction form
    98,842.85/136,400.62 = 55,235.77/x
  3. Step 3: Cross multiply
    98,842.85x = 136,400.62 × 55,235.77
  4. Step 4: Simplify right side
    98,842.85x = 7,534,193,274.18
  5. Step 5: Solve for x
    x = 7,534,193,274.18/98,842.85
  6. Step 6: Final answer
    x = 76,223.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.