Home / 99,918.27-137,888.06-64,108.98

Finding the Fourth Proportional to 99,918.27, 137,888.06 and 64,108.98

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Solution

The fourth proportional to 99,918.27, 137,888.06 and 64,108.98 is: 88,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,918.27 : 137,888.06 = 64,108.98 : x
  2. Step 2: Convert to fraction form
    99,918.27/137,888.06 = 64,108.98/x
  3. Step 3: Cross multiply
    99,918.27x = 137,888.06 × 64,108.98
  4. Step 4: Simplify right side
    99,918.27x = 8,839,862,560.23
  5. Step 5: Solve for x
    x = 8,839,862,560.23/99,918.27
  6. Step 6: Final answer
    x = 88,470.93

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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.