Home / 112,794.90-155,615.13-72,530.87

Finding the Fourth Proportional to 112,794.90, 155,615.13 and 72,530.87

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Solution

The fourth proportional to 112,794.90, 155,615.13 and 72,530.87 is: 100,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,794.90 : 155,615.13 = 72,530.87 : x
  2. Step 2: Convert to fraction form
    112,794.90/155,615.13 = 72,530.87/x
  3. Step 3: Cross multiply
    112,794.90x = 155,615.13 × 72,530.87
  4. Step 4: Simplify right side
    112,794.90x = 11,286,900,257.98
  5. Step 5: Solve for x
    x = 11,286,900,257.98/112,794.90
  6. Step 6: Final answer
    x = 100,065.70

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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.