Home / 99,882.14-137,856.72-64,117.40

Finding the Fourth Proportional to 99,882.14, 137,856.72 and 64,117.40

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Solution

The fourth proportional to 99,882.14, 137,856.72 and 64,117.40 is: 88,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,882.14 : 137,856.72 = 64,117.40 : x
  2. Step 2: Convert to fraction form
    99,882.14/137,856.72 = 64,117.40/x
  3. Step 3: Cross multiply
    99,882.14x = 137,856.72 × 64,117.40
  4. Step 4: Simplify right side
    99,882.14x = 8,839,014,458.93
  5. Step 5: Solve for x
    x = 8,839,014,458.93/99,882.14
  6. Step 6: Final answer
    x = 88,494.44

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1.5x scale

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.