Home / 99,460.35-137,255.15-54,138.19

Finding the Fourth Proportional to 99,460.35, 137,255.15 and 54,138.19

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Solution

The fourth proportional to 99,460.35, 137,255.15 and 54,138.19 is: 74,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,460.35 : 137,255.15 = 54,138.19 : x
  2. Step 2: Convert to fraction form
    99,460.35/137,255.15 = 54,138.19/x
  3. Step 3: Cross multiply
    99,460.35x = 137,255.15 × 54,138.19
  4. Step 4: Simplify right side
    99,460.35x = 7,430,745,118.49
  5. Step 5: Solve for x
    x = 7,430,745,118.49/99,460.35
  6. Step 6: Final answer
    x = 74,710.63

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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.