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Finding the Fourth Proportional to 115,076.84, 158,813.22 and 69,758.76

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Solution

The fourth proportional to 115,076.84, 158,813.22 and 69,758.76 is: 96,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,076.84 : 158,813.22 = 69,758.76 : x
  2. Step 2: Convert to fraction form
    115,076.84/158,813.22 = 69,758.76/x
  3. Step 3: Cross multiply
    115,076.84x = 158,813.22 × 69,758.76
  4. Step 4: Simplify right side
    115,076.84x = 11,078,613,298.81
  5. Step 5: Solve for x
    x = 11,078,613,298.81/115,076.84
  6. Step 6: Final answer
    x = 96,271.44

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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.