Home / 99,976.42-137,953.95-64,214.92

Finding the Fourth Proportional to 99,976.42, 137,953.95 and 64,214.92

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Solution

The fourth proportional to 99,976.42, 137,953.95 and 64,214.92 is: 88,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,976.42 : 137,953.95 = 64,214.92 : x
  2. Step 2: Convert to fraction form
    99,976.42/137,953.95 = 64,214.92/x
  3. Step 3: Cross multiply
    99,976.42x = 137,953.95 × 64,214.92
  4. Step 4: Simplify right side
    99,976.42x = 8,858,701,862.93
  5. Step 5: Solve for x
    x = 8,858,701,862.93/99,976.42
  6. Step 6: Final answer
    x = 88,607.91

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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.