Home / 112,439.52-155,161.44-69,438.24

Finding the Fourth Proportional to 112,439.52, 155,161.44 and 69,438.24

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Solution

The fourth proportional to 112,439.52, 155,161.44 and 69,438.24 is: 95,821.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,439.52 : 155,161.44 = 69,438.24 : x
  2. Step 2: Convert to fraction form
    112,439.52/155,161.44 = 69,438.24/x
  3. Step 3: Cross multiply
    112,439.52x = 155,161.44 × 69,438.24
  4. Step 4: Simplify right side
    112,439.52x = 10,774,137,309.47
  5. Step 5: Solve for x
    x = 10,774,137,309.47/112,439.52
  6. Step 6: Final answer
    x = 95,821.62

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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.