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Finding the Fourth Proportional to 107,828.80, 161,750.40 and 36,750.40

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Solution

The fourth proportional to 107,828.80, 161,750.40 and 36,750.40 is: 55,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,828.80 : 161,750.40 = 36,750.40 : x
  2. Step 2: Convert to fraction form
    107,828.80/161,750.40 = 36,750.40/x
  3. Step 3: Cross multiply
    107,828.80x = 161,750.40 × 36,750.40
  4. Step 4: Simplify right side
    107,828.80x = 5,944,391,900.16
  5. Step 5: Solve for x
    x = 5,944,391,900.16/107,828.80
  6. Step 6: Final answer
    x = 55,128.05

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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.