Home / 161,729.16-223,187.79-89,134.69

Finding the Fourth Proportional to 161,729.16, 223,187.79 and 89,134.69

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Solution

The fourth proportional to 161,729.16, 223,187.79 and 89,134.69 is: 123,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,729.16 : 223,187.79 = 89,134.69 : x
  2. Step 2: Convert to fraction form
    161,729.16/223,187.79 = 89,134.69/x
  3. Step 3: Cross multiply
    161,729.16x = 223,187.79 × 89,134.69
  4. Step 4: Simplify right side
    161,729.16x = 19,893,774,150.53
  5. Step 5: Solve for x
    x = 19,893,774,150.53/161,729.16
  6. Step 6: Final answer
    x = 123,006.72

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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.