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Finding the Fourth Proportional to 107,899.70, 161,849.54 and 45,570.74

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Solution

The fourth proportional to 107,899.70, 161,849.54 and 45,570.74 is: 68,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,899.70 : 161,849.54 = 45,570.74 : x
  2. Step 2: Convert to fraction form
    107,899.70/161,849.54 = 45,570.74/x
  3. Step 3: Cross multiply
    107,899.70x = 161,849.54 × 45,570.74
  4. Step 4: Simplify right side
    107,899.70x = 7,375,602,611.14
  5. Step 5: Solve for x
    x = 7,375,602,611.14/107,899.70
  6. Step 6: Final answer
    x = 68,356.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.