Home / 109,957.86-164,939.85-38,870.45

Finding the Fourth Proportional to 109,957.86, 164,939.85 and 38,870.45

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Solution

The fourth proportional to 109,957.86, 164,939.85 and 38,870.45 is: 58,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,957.86 : 164,939.85 = 38,870.45 : x
  2. Step 2: Convert to fraction form
    109,957.86/164,939.85 = 38,870.45/x
  3. Step 3: Cross multiply
    109,957.86x = 164,939.85 × 38,870.45
  4. Step 4: Simplify right side
    109,957.86x = 6,411,285,367.73
  5. Step 5: Solve for x
    x = 6,411,285,367.73/109,957.86
  6. Step 6: Final answer
    x = 58,306.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.