Home / 112,358.82-155,117.45-76,601.37

Finding the Fourth Proportional to 112,358.82, 155,117.45 and 76,601.37

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Solution

The fourth proportional to 112,358.82, 155,117.45 and 76,601.37 is: 105,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,358.82 : 155,117.45 = 76,601.37 : x
  2. Step 2: Convert to fraction form
    112,358.82/155,117.45 = 76,601.37/x
  3. Step 3: Cross multiply
    112,358.82x = 155,117.45 × 76,601.37
  4. Step 4: Simplify right side
    112,358.82x = 11,882,209,372.41
  5. Step 5: Solve for x
    x = 11,882,209,372.41/112,358.82
  6. Step 6: Final answer
    x = 105,752.35

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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.