Home / 112,331.94-155,015.78-61,342.70

Finding the Fourth Proportional to 112,331.94, 155,015.78 and 61,342.70

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Solution

The fourth proportional to 112,331.94, 155,015.78 and 61,342.70 is: 84,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,331.94 : 155,015.78 = 61,342.70 : x
  2. Step 2: Convert to fraction form
    112,331.94/155,015.78 = 61,342.70/x
  3. Step 3: Cross multiply
    112,331.94x = 155,015.78 × 61,342.70
  4. Step 4: Simplify right side
    112,331.94x = 9,509,086,487.81
  5. Step 5: Solve for x
    x = 9,509,086,487.81/112,331.94
  6. Step 6: Final answer
    x = 84,651.67

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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.