Home / 106,439.13-159,658.70-43,293.60

Finding the Fourth Proportional to 106,439.13, 159,658.70 and 43,293.60

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Solution

The fourth proportional to 106,439.13, 159,658.70 and 43,293.60 is: 64,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,439.13 : 159,658.70 = 43,293.60 : x
  2. Step 2: Convert to fraction form
    106,439.13/159,658.70 = 43,293.60/x
  3. Step 3: Cross multiply
    106,439.13x = 159,658.70 × 43,293.60
  4. Step 4: Simplify right side
    106,439.13x = 6,912,199,894.32
  5. Step 5: Solve for x
    x = 6,912,199,894.32/106,439.13
  6. Step 6: Final answer
    x = 64,940.40

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1.5x scale

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.