Home / 148,320.81-222,518.89-43,139.78

Finding the Fourth Proportional to 148,320.81, 222,518.89 and 43,139.78

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Solution

The fourth proportional to 148,320.81, 222,518.89 and 43,139.78 is: 64,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,320.81 : 222,518.89 = 43,139.78 : x
  2. Step 2: Convert to fraction form
    148,320.81/222,518.89 = 43,139.78/x
  3. Step 3: Cross multiply
    148,320.81x = 222,518.89 × 43,139.78
  4. Step 4: Simplify right side
    148,320.81x = 9,599,415,960.44
  5. Step 5: Solve for x
    x = 9,599,415,960.44/148,320.81
  6. Step 6: Final answer
    x = 64,720.63

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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.