Home / 105,878.08-146,123.76-58,135.60

Finding the Fourth Proportional to 105,878.08, 146,123.76 and 58,135.60

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Solution

The fourth proportional to 105,878.08, 146,123.76 and 58,135.60 is: 80,233.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,878.08 : 146,123.76 = 58,135.60 : x
  2. Step 2: Convert to fraction form
    105,878.08/146,123.76 = 58,135.60/x
  3. Step 3: Cross multiply
    105,878.08x = 146,123.76 × 58,135.60
  4. Step 4: Simplify right side
    105,878.08x = 8,494,992,461.86
  5. Step 5: Solve for x
    x = 8,494,992,461.86/105,878.08
  6. Step 6: Final answer
    x = 80,233.72

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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.