Home / 99,864.64-137,813.12-55,152.64

Finding the Fourth Proportional to 99,864.64, 137,813.12 and 55,152.64

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Solution

The fourth proportional to 99,864.64, 137,813.12 and 55,152.64 is: 76,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,864.64 : 137,813.12 = 55,152.64 : x
  2. Step 2: Convert to fraction form
    99,864.64/137,813.12 = 55,152.64/x
  3. Step 3: Cross multiply
    99,864.64x = 137,813.12 × 55,152.64
  4. Step 4: Simplify right side
    99,864.64x = 7,600,757,394.64
  5. Step 5: Solve for x
    x = 7,600,757,394.64/99,864.64
  6. Step 6: Final answer
    x = 76,110.60

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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.