Home / 141,635.81-195,458.73-77,974.67

Finding the Fourth Proportional to 141,635.81, 195,458.73 and 77,974.67

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Solution

The fourth proportional to 141,635.81, 195,458.73 and 77,974.67 is: 107,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,635.81 : 195,458.73 = 77,974.67 : x
  2. Step 2: Convert to fraction form
    141,635.81/195,458.73 = 77,974.67/x
  3. Step 3: Cross multiply
    141,635.81x = 195,458.73 × 77,974.67
  4. Step 4: Simplify right side
    141,635.81x = 15,240,829,970.37
  5. Step 5: Solve for x
    x = 15,240,829,970.37/141,635.81
  6. Step 6: Final answer
    x = 107,605.77

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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.