Home / 99,147.18-136,772.42-63,299.52

Finding the Fourth Proportional to 99,147.18, 136,772.42 and 63,299.52

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Solution

The fourth proportional to 99,147.18, 136,772.42 and 63,299.52 is: 87,320.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,147.18 : 136,772.42 = 63,299.52 : x
  2. Step 2: Convert to fraction form
    99,147.18/136,772.42 = 63,299.52/x
  3. Step 3: Cross multiply
    99,147.18x = 136,772.42 × 63,299.52
  4. Step 4: Simplify right side
    99,147.18x = 8,657,628,535.24
  5. Step 5: Solve for x
    x = 8,657,628,535.24/99,147.18
  6. Step 6: Final answer
    x = 87,320.98

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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.