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Finding the Fourth Proportional to 157,812.53, 217,727.26 and 89,812.46

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Solution

The fourth proportional to 157,812.53, 217,727.26 and 89,812.46 is: 123,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,812.53 : 217,727.26 = 89,812.46 : x
  2. Step 2: Convert to fraction form
    157,812.53/217,727.26 = 89,812.46/x
  3. Step 3: Cross multiply
    157,812.53x = 217,727.26 × 89,812.46
  4. Step 4: Simplify right side
    157,812.53x = 19,554,621,149.45
  5. Step 5: Solve for x
    x = 19,554,621,149.45/157,812.53
  6. Step 6: Final answer
    x = 123,910.45

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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.