Home / 119,146.08-164,425.80-65,432.56

Finding the Fourth Proportional to 119,146.08, 164,425.80 and 65,432.56

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Solution

The fourth proportional to 119,146.08, 164,425.80 and 65,432.56 is: 90,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,146.08 : 164,425.80 = 65,432.56 : x
  2. Step 2: Convert to fraction form
    119,146.08/164,425.80 = 65,432.56/x
  3. Step 3: Cross multiply
    119,146.08x = 164,425.80 × 65,432.56
  4. Step 4: Simplify right side
    119,146.08x = 10,758,801,024.05
  5. Step 5: Solve for x
    x = 10,758,801,024.05/119,146.08
  6. Step 6: Final answer
    x = 90,299.24

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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.