Home / 99,913.04-137,822.81-64,062.65

Finding the Fourth Proportional to 99,913.04, 137,822.81 and 64,062.65

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Solution

The fourth proportional to 99,913.04, 137,822.81 and 64,062.65 is: 88,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,913.04 : 137,822.81 = 64,062.65 : x
  2. Step 2: Convert to fraction form
    99,913.04/137,822.81 = 64,062.65/x
  3. Step 3: Cross multiply
    99,913.04x = 137,822.81 × 64,062.65
  4. Step 4: Simplify right side
    99,913.04x = 8,829,293,589.78
  5. Step 5: Solve for x
    x = 8,829,293,589.78/99,913.04
  6. Step 6: Final answer
    x = 88,369.78

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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.