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Finding the Fourth Proportional to 133,018.56, 183,595.68 and 90,594

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Solution

The fourth proportional to 133,018.56, 183,595.68 and 90,594 is: 125,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.56 : 183,595.68 = 90,594 : x
  2. Step 2: Convert to fraction form
    133,018.56/183,595.68 = 90,594/x
  3. Step 3: Cross multiply
    133,018.56x = 183,595.68 × 90,594
  4. Step 4: Simplify right side
    133,018.56x = 16,632,667,033.92
  5. Step 5: Solve for x
    x = 16,632,667,033.92/133,018.56
  6. Step 6: Final answer
    x = 125,040.20

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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.