Home / 109,634.04-151,301.06-77,379

Finding the Fourth Proportional to 109,634.04, 151,301.06 and 77,379

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Solution

The fourth proportional to 109,634.04, 151,301.06 and 77,379 is: 106,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,634.04 : 151,301.06 = 77,379 : x
  2. Step 2: Convert to fraction form
    109,634.04/151,301.06 = 77,379/x
  3. Step 3: Cross multiply
    109,634.04x = 151,301.06 × 77,379
  4. Step 4: Simplify right side
    109,634.04x = 11,707,524,721.74
  5. Step 5: Solve for x
    x = 11,707,524,721.74/109,634.04
  6. Step 6: Final answer
    x = 106,787.31

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1.5x scale

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.