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Finding the Fourth Proportional to 145,166.82, 217,750.13 and 45,335.57

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Solution

The fourth proportional to 145,166.82, 217,750.13 and 45,335.57 is: 68,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,166.82 : 217,750.13 = 45,335.57 : x
  2. Step 2: Convert to fraction form
    145,166.82/217,750.13 = 45,335.57/x
  3. Step 3: Cross multiply
    145,166.82x = 217,750.13 × 45,335.57
  4. Step 4: Simplify right side
    145,166.82x = 9,871,824,945.70
  5. Step 5: Solve for x
    x = 9,871,824,945.70/145,166.82
  6. Step 6: Final answer
    x = 68,003.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.