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Finding the Fourth Proportional to 119,421.22, 164,610.03 and 90,647.14

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Solution

The fourth proportional to 119,421.22, 164,610.03 and 90,647.14 is: 124,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,421.22 : 164,610.03 = 90,647.14 : x
  2. Step 2: Convert to fraction form
    119,421.22/164,610.03 = 90,647.14/x
  3. Step 3: Cross multiply
    119,421.22x = 164,610.03 × 90,647.14
  4. Step 4: Simplify right side
    119,421.22x = 14,921,428,434.81
  5. Step 5: Solve for x
    x = 14,921,428,434.81/119,421.22
  6. Step 6: Final answer
    x = 124,947.88

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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.