Home / 76,148.19-105,083.19-42,155.96

Finding the Fourth Proportional to 76,148.19, 105,083.19 and 42,155.96

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Solution

The fourth proportional to 76,148.19, 105,083.19 and 42,155.96 is: 58,174.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,148.19 : 105,083.19 = 42,155.96 : x
  2. Step 2: Convert to fraction form
    76,148.19/105,083.19 = 42,155.96/x
  3. Step 3: Cross multiply
    76,148.19x = 105,083.19 × 42,155.96
  4. Step 4: Simplify right side
    76,148.19x = 4,429,882,228.90
  5. Step 5: Solve for x
    x = 4,429,882,228.90/76,148.19
  6. Step 6: Final answer
    x = 58,174.49

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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.