Home / 99,646.72-137,517.12-59,351.36

Finding the Fourth Proportional to 99,646.72, 137,517.12 and 59,351.36

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Solution

The fourth proportional to 99,646.72, 137,517.12 and 59,351.36 is: 81,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,646.72 : 137,517.12 = 59,351.36 : x
  2. Step 2: Convert to fraction form
    99,646.72/137,517.12 = 59,351.36/x
  3. Step 3: Cross multiply
    99,646.72x = 137,517.12 × 59,351.36
  4. Step 4: Simplify right side
    99,646.72x = 8,161,828,095.28
  5. Step 5: Solve for x
    x = 8,161,828,095.28/99,646.72
  6. Step 6: Final answer
    x = 81,907.64

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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.