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Finding the Fourth Proportional to 123,811.74, 170,850.87 and 70,084.44

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Solution

The fourth proportional to 123,811.74, 170,850.87 and 70,084.44 is: 96,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,811.74 : 170,850.87 = 70,084.44 : x
  2. Step 2: Convert to fraction form
    123,811.74/170,850.87 = 70,084.44/x
  3. Step 3: Cross multiply
    123,811.74x = 170,850.87 × 70,084.44
  4. Step 4: Simplify right side
    123,811.74x = 11,973,987,547.46
  5. Step 5: Solve for x
    x = 11,973,987,547.46/123,811.74
  6. Step 6: Final answer
    x = 96,711.25

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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.