Home / 137,569.16-189,855.18-76,335.38

Finding the Fourth Proportional to 137,569.16, 189,855.18 and 76,335.38

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Solution

The fourth proportional to 137,569.16, 189,855.18 and 76,335.38 is: 105,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,569.16 : 189,855.18 = 76,335.38 : x
  2. Step 2: Convert to fraction form
    137,569.16/189,855.18 = 76,335.38/x
  3. Step 3: Cross multiply
    137,569.16x = 189,855.18 × 76,335.38
  4. Step 4: Simplify right side
    137,569.16x = 14,492,667,310.27
  5. Step 5: Solve for x
    x = 14,492,667,310.27/137,569.16
  6. Step 6: Final answer
    x = 105,348.23

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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.