Home / 111,799.79-154,154.57-89,121.14

Finding the Fourth Proportional to 111,799.79, 154,154.57 and 89,121.14

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Solution

The fourth proportional to 111,799.79, 154,154.57 and 89,121.14 is: 122,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,799.79 : 154,154.57 = 89,121.14 : x
  2. Step 2: Convert to fraction form
    111,799.79/154,154.57 = 89,121.14/x
  3. Step 3: Cross multiply
    111,799.79x = 154,154.57 × 89,121.14
  4. Step 4: Simplify right side
    111,799.79x = 13,738,429,798.23
  5. Step 5: Solve for x
    x = 13,738,429,798.23/111,799.79
  6. Step 6: Final answer
    x = 122,884.22

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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.