Home / 141,630.81-195,451.83-77,969.67

Finding the Fourth Proportional to 141,630.81, 195,451.83 and 77,969.67

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Solution

The fourth proportional to 141,630.81, 195,451.83 and 77,969.67 is: 107,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,630.81 : 195,451.83 = 77,969.67 : x
  2. Step 2: Convert to fraction form
    141,630.81/195,451.83 = 77,969.67/x
  3. Step 3: Cross multiply
    141,630.81x = 195,451.83 × 77,969.67
  4. Step 4: Simplify right side
    141,630.81x = 15,239,314,686.00
  5. Step 5: Solve for x
    x = 15,239,314,686.00/141,630.81
  6. Step 6: Final answer
    x = 107,598.87

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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.