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Finding the Fourth Proportional to 133,687, 184,488.06 and 79,974.28

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Solution

The fourth proportional to 133,687, 184,488.06 and 79,974.28 is: 110,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,687 : 184,488.06 = 79,974.28 : x
  2. Step 2: Convert to fraction form
    133,687/184,488.06 = 79,974.28/x
  3. Step 3: Cross multiply
    133,687x = 184,488.06 × 79,974.28
  4. Step 4: Simplify right side
    133,687x = 14,754,299,767.10
  5. Step 5: Solve for x
    x = 14,754,299,767.10/133,687
  6. Step 6: Final answer
    x = 110,364.51

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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.