Home / 189,582.12-261,622.31-103,541.90

Finding the Fourth Proportional to 189,582.12, 261,622.31 and 103,541.90

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Solution

The fourth proportional to 189,582.12, 261,622.31 and 103,541.90 is: 142,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,582.12 : 261,622.31 = 103,541.90 : x
  2. Step 2: Convert to fraction form
    189,582.12/261,622.31 = 103,541.90/x
  3. Step 3: Cross multiply
    189,582.12x = 261,622.31 × 103,541.90
  4. Step 4: Simplify right side
    189,582.12x = 27,088,869,233.97
  5. Step 5: Solve for x
    x = 27,088,869,233.97/189,582.12
  6. Step 6: Final answer
    x = 142,887.26

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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.