Home / 99,934.96-137,896.96-64,173.40

Finding the Fourth Proportional to 99,934.96, 137,896.96 and 64,173.40

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Solution

The fourth proportional to 99,934.96, 137,896.96 and 64,173.40 is: 88,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,934.96 : 137,896.96 = 64,173.40 : x
  2. Step 2: Convert to fraction form
    99,934.96/137,896.96 = 64,173.40/x
  3. Step 3: Cross multiply
    99,934.96x = 137,896.96 × 64,173.40
  4. Step 4: Simplify right side
    99,934.96x = 8,849,316,772.86
  5. Step 5: Solve for x
    x = 8,849,316,772.86/99,934.96
  6. Step 6: Final answer
    x = 88,550.76

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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.