Home / 99,279.45-148,919.18-43,146.45

Finding the Fourth Proportional to 99,279.45, 148,919.18 and 43,146.45

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Solution

The fourth proportional to 99,279.45, 148,919.18 and 43,146.45 is: 64,719.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,279.45 : 148,919.18 = 43,146.45 : x
  2. Step 2: Convert to fraction form
    99,279.45/148,919.18 = 43,146.45/x
  3. Step 3: Cross multiply
    99,279.45x = 148,919.18 × 43,146.45
  4. Step 4: Simplify right side
    99,279.45x = 6,425,333,738.18
  5. Step 5: Solve for x
    x = 6,425,333,738.18/99,279.45
  6. Step 6: Final answer
    x = 64,719.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.