Home / 99,862.96-137,822.16-56,853.04

Finding the Fourth Proportional to 99,862.96, 137,822.16 and 56,853.04

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Solution

The fourth proportional to 99,862.96, 137,822.16 and 56,853.04 is: 78,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,862.96 : 137,822.16 = 56,853.04 : x
  2. Step 2: Convert to fraction form
    99,862.96/137,822.16 = 56,853.04/x
  3. Step 3: Cross multiply
    99,862.96x = 137,822.16 × 56,853.04
  4. Step 4: Simplify right side
    99,862.96x = 7,835,608,775.37
  5. Step 5: Solve for x
    x = 7,835,608,775.37/99,862.96
  6. Step 6: Final answer
    x = 78,463.61

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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.