Home / 102,618.12-153,768.42-69,207.24

Finding the Fourth Proportional to 102,618.12, 153,768.42 and 69,207.24

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Solution

The fourth proportional to 102,618.12, 153,768.42 and 69,207.24 is: 103,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,618.12 : 153,768.42 = 69,207.24 : x
  2. Step 2: Convert to fraction form
    102,618.12/153,768.42 = 69,207.24/x
  3. Step 3: Cross multiply
    102,618.12x = 153,768.42 × 69,207.24
  4. Step 4: Simplify right side
    102,618.12x = 10,641,887,947.36
  5. Step 5: Solve for x
    x = 10,641,887,947.36/102,618.12
  6. Step 6: Final answer
    x = 103,703.79

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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.