Home / 100,011.93-137,951.42-64,145.13

Finding the Fourth Proportional to 100,011.93, 137,951.42 and 64,145.13

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Solution

The fourth proportional to 100,011.93, 137,951.42 and 64,145.13 is: 88,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,011.93 : 137,951.42 = 64,145.13 : x
  2. Step 2: Convert to fraction form
    100,011.93/137,951.42 = 64,145.13/x
  3. Step 3: Cross multiply
    100,011.93x = 137,951.42 × 64,145.13
  4. Step 4: Simplify right side
    100,011.93x = 8,848,911,448.86
  5. Step 5: Solve for x
    x = 8,848,911,448.86/100,011.93
  6. Step 6: Final answer
    x = 88,478.56

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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.