Home / 189,225.82-261,129.72-103,184.59

Finding the Fourth Proportional to 189,225.82, 261,129.72 and 103,184.59

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Solution

The fourth proportional to 189,225.82, 261,129.72 and 103,184.59 is: 142,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.82 : 261,129.72 = 103,184.59 : x
  2. Step 2: Convert to fraction form
    189,225.82/261,129.72 = 103,184.59/x
  3. Step 3: Cross multiply
    189,225.82x = 261,129.72 × 103,184.59
  4. Step 4: Simplify right side
    189,225.82x = 26,944,563,095.01
  5. Step 5: Solve for x
    x = 26,944,563,095.01/189,225.82
  6. Step 6: Final answer
    x = 142,393.69

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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.