Home / 109,726.80-164,590.20-74,297.40

Finding the Fourth Proportional to 109,726.80, 164,590.20 and 74,297.40

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Solution

The fourth proportional to 109,726.80, 164,590.20 and 74,297.40 is: 111,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726.80 : 164,590.20 = 74,297.40 : x
  2. Step 2: Convert to fraction form
    109,726.80/164,590.20 = 74,297.40/x
  3. Step 3: Cross multiply
    109,726.80x = 164,590.20 × 74,297.40
  4. Step 4: Simplify right side
    109,726.80x = 12,228,623,925.48
  5. Step 5: Solve for x
    x = 12,228,623,925.48/109,726.80
  6. Step 6: Final answer
    x = 111,446.10

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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.