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Finding the Fourth Proportional to 105,243.38, 157,097.34 and 91,957.22

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Solution

The fourth proportional to 105,243.38, 157,097.34 and 91,957.22 is: 137,265.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,243.38 : 157,097.34 = 91,957.22 : x
  2. Step 2: Convert to fraction form
    105,243.38/157,097.34 = 91,957.22/x
  3. Step 3: Cross multiply
    105,243.38x = 157,097.34 × 91,957.22
  4. Step 4: Simplify right side
    105,243.38x = 14,446,234,655.79
  5. Step 5: Solve for x
    x = 14,446,234,655.79/105,243.38
  6. Step 6: Final answer
    x = 137,265.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.