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Finding the Fourth Proportional to 107,758.70, 148,666.11 and 65,301.74

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Solution

The fourth proportional to 107,758.70, 148,666.11 and 65,301.74 is: 90,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,758.70 : 148,666.11 = 65,301.74 : x
  2. Step 2: Convert to fraction form
    107,758.70/148,666.11 = 65,301.74/x
  3. Step 3: Cross multiply
    107,758.70x = 148,666.11 × 65,301.74
  4. Step 4: Simplify right side
    107,758.70x = 9,708,155,662.03
  5. Step 5: Solve for x
    x = 9,708,155,662.03/107,758.70
  6. Step 6: Final answer
    x = 90,091.62

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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.