Home / 99,830.22-137,763.48-54,506.46

Finding the Fourth Proportional to 99,830.22, 137,763.48 and 54,506.46

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Solution

The fourth proportional to 99,830.22, 137,763.48 and 54,506.46 is: 75,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,830.22 : 137,763.48 = 54,506.46 : x
  2. Step 2: Convert to fraction form
    99,830.22/137,763.48 = 54,506.46/x
  3. Step 3: Cross multiply
    99,830.22x = 137,763.48 × 54,506.46
  4. Step 4: Simplify right side
    99,830.22x = 7,508,999,612.08
  5. Step 5: Solve for x
    x = 7,508,999,612.08/99,830.22
  6. Step 6: Final answer
    x = 75,217.70

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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.