Home / 218,570.36-301,655.84-123,095.72

Finding the Fourth Proportional to 218,570.36, 301,655.84 and 123,095.72

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Solution

The fourth proportional to 218,570.36, 301,655.84 and 123,095.72 is: 169,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,570.36 : 301,655.84 = 123,095.72 : x
  2. Step 2: Convert to fraction form
    218,570.36/301,655.84 = 123,095.72/x
  3. Step 3: Cross multiply
    218,570.36x = 301,655.84 × 123,095.72
  4. Step 4: Simplify right side
    218,570.36x = 37,132,542,817.00
  5. Step 5: Solve for x
    x = 37,132,542,817.00/218,570.36
  6. Step 6: Final answer
    x = 169,888.28

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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.