Home / 99,788.32-137,698.08-55,073.44

Finding the Fourth Proportional to 99,788.32, 137,698.08 and 55,073.44

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Solution

The fourth proportional to 99,788.32, 137,698.08 and 55,073.44 is: 75,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,788.32 : 137,698.08 = 55,073.44 : x
  2. Step 2: Convert to fraction form
    99,788.32/137,698.08 = 55,073.44/x
  3. Step 3: Cross multiply
    99,788.32x = 137,698.08 × 55,073.44
  4. Step 4: Simplify right side
    99,788.32x = 7,583,506,947.00
  5. Step 5: Solve for x
    x = 7,583,506,947.00/99,788.32
  6. Step 6: Final answer
    x = 75,995.94

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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.