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Finding the Fourth Proportional to 147,407.76, 220,670.94 and 90,301.77

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Solution

The fourth proportional to 147,407.76, 220,670.94 and 90,301.77 is: 135,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,407.76 : 220,670.94 = 90,301.77 : x
  2. Step 2: Convert to fraction form
    147,407.76/220,670.94 = 90,301.77/x
  3. Step 3: Cross multiply
    147,407.76x = 220,670.94 × 90,301.77
  4. Step 4: Simplify right side
    147,407.76x = 19,926,976,469.56
  5. Step 5: Solve for x
    x = 19,926,976,469.56/147,407.76
  6. Step 6: Final answer
    x = 135,182.68

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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.