Home / 99,776.64-137,377.44-84,637.92

Finding the Fourth Proportional to 99,776.64, 137,377.44 and 84,637.92

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Solution

The fourth proportional to 99,776.64, 137,377.44 and 84,637.92 is: 116,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,776.64 : 137,377.44 = 84,637.92 : x
  2. Step 2: Convert to fraction form
    99,776.64/137,377.44 = 84,637.92/x
  3. Step 3: Cross multiply
    99,776.64x = 137,377.44 × 84,637.92
  4. Step 4: Simplify right side
    99,776.64x = 11,627,340,776.52
  5. Step 5: Solve for x
    x = 11,627,340,776.52/99,776.64
  6. Step 6: Final answer
    x = 116,533.70

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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.