Home / 189,714.10-261,806.12-103,673.06

Finding the Fourth Proportional to 189,714.10, 261,806.12 and 103,673.06

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Solution

The fourth proportional to 189,714.10, 261,806.12 and 103,673.06 is: 143,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,714.10 : 261,806.12 = 103,673.06 : x
  2. Step 2: Convert to fraction form
    189,714.10/261,806.12 = 103,673.06/x
  3. Step 3: Cross multiply
    189,714.10x = 261,806.12 × 103,673.06
  4. Step 4: Simplify right side
    189,714.10x = 27,142,241,587.13
  5. Step 5: Solve for x
    x = 27,142,241,587.13/189,714.10
  6. Step 6: Final answer
    x = 143,069.18

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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.