Home / 189,444.87-261,432.63-104,561.91

Finding the Fourth Proportional to 189,444.87, 261,432.63 and 104,561.91

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Solution

The fourth proportional to 189,444.87, 261,432.63 and 104,561.91 is: 144,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,444.87 : 261,432.63 = 104,561.91 : x
  2. Step 2: Convert to fraction form
    189,444.87/261,432.63 = 104,561.91/x
  3. Step 3: Cross multiply
    189,444.87x = 261,432.63 × 104,561.91
  4. Step 4: Simplify right side
    189,444.87x = 27,335,895,129.12
  5. Step 5: Solve for x
    x = 27,335,895,129.12/189,444.87
  6. Step 6: Final answer
    x = 144,294.72

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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.