Home / 99,695.05-137,501.38-63,888.39

Finding the Fourth Proportional to 99,695.05, 137,501.38 and 63,888.39

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Solution

The fourth proportional to 99,695.05, 137,501.38 and 63,888.39 is: 88,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.05 : 137,501.38 = 63,888.39 : x
  2. Step 2: Convert to fraction form
    99,695.05/137,501.38 = 63,888.39/x
  3. Step 3: Cross multiply
    99,695.05x = 137,501.38 × 63,888.39
  4. Step 4: Simplify right side
    99,695.05x = 8,784,741,870.84
  5. Step 5: Solve for x
    x = 8,784,741,870.84/99,695.05
  6. Step 6: Final answer
    x = 88,116.13

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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.