Home / 109,685.63-151,389.56-75,277.43

Finding the Fourth Proportional to 109,685.63, 151,389.56 and 75,277.43

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Solution

The fourth proportional to 109,685.63, 151,389.56 and 75,277.43 is: 103,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,685.63 : 151,389.56 = 75,277.43 : x
  2. Step 2: Convert to fraction form
    109,685.63/151,389.56 = 75,277.43/x
  3. Step 3: Cross multiply
    109,685.63x = 151,389.56 × 75,277.43
  4. Step 4: Simplify right side
    109,685.63x = 11,396,217,007.72
  5. Step 5: Solve for x
    x = 11,396,217,007.72/109,685.63
  6. Step 6: Final answer
    x = 103,898.91

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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.