Home / 115,338.74-159,267.59-72,392.67

Finding the Fourth Proportional to 115,338.74, 159,267.59 and 72,392.67

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Solution

The fourth proportional to 115,338.74, 159,267.59 and 72,392.67 is: 99,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,338.74 : 159,267.59 = 72,392.67 : x
  2. Step 2: Convert to fraction form
    115,338.74/159,267.59 = 72,392.67/x
  3. Step 3: Cross multiply
    115,338.74x = 159,267.59 × 72,392.67
  4. Step 4: Simplify right side
    115,338.74x = 11,529,806,197.68
  5. Step 5: Solve for x
    x = 11,529,806,197.68/115,338.74
  6. Step 6: Final answer
    x = 99,964.73

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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.