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Finding the Fourth Proportional to 103,952.93, 155,177.42 and 91,341.59

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Solution

The fourth proportional to 103,952.93, 155,177.42 and 91,341.59 is: 136,351.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,952.93 : 155,177.42 = 91,341.59 : x
  2. Step 2: Convert to fraction form
    103,952.93/155,177.42 = 91,341.59/x
  3. Step 3: Cross multiply
    103,952.93x = 155,177.42 × 91,341.59
  4. Step 4: Simplify right side
    103,952.93x = 14,174,151,042.30
  5. Step 5: Solve for x
    x = 14,174,151,042.30/103,952.93
  6. Step 6: Final answer
    x = 136,351.63

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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.