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Finding the Fourth Proportional to 123,750.76, 170,776.74 and 70,035.88

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Solution

The fourth proportional to 123,750.76, 170,776.74 and 70,035.88 is: 96,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,750.76 : 170,776.74 = 70,035.88 : x
  2. Step 2: Convert to fraction form
    123,750.76/170,776.74 = 70,035.88/x
  3. Step 3: Cross multiply
    123,750.76x = 170,776.74 × 70,035.88
  4. Step 4: Simplify right side
    123,750.76x = 11,960,499,269.43
  5. Step 5: Solve for x
    x = 11,960,499,269.43/123,750.76
  6. Step 6: Final answer
    x = 96,649.91

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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.