Home / 109,723.80-164,585.70-103,600.20

Finding the Fourth Proportional to 109,723.80, 164,585.70 and 103,600.20

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Solution

The fourth proportional to 109,723.80, 164,585.70 and 103,600.20 is: 155,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,723.80 : 164,585.70 = 103,600.20 : x
  2. Step 2: Convert to fraction form
    109,723.80/164,585.70 = 103,600.20/x
  3. Step 3: Cross multiply
    109,723.80x = 164,585.70 × 103,600.20
  4. Step 4: Simplify right side
    109,723.80x = 17,051,111,437.14
  5. Step 5: Solve for x
    x = 17,051,111,437.14/109,723.80
  6. Step 6: Final answer
    x = 155,400.30

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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.