Home / 141,485.49-195,251.61-77,823.75

Finding the Fourth Proportional to 141,485.49, 195,251.61 and 77,823.75

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Solution

The fourth proportional to 141,485.49, 195,251.61 and 77,823.75 is: 107,397.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,485.49 : 195,251.61 = 77,823.75 : x
  2. Step 2: Convert to fraction form
    141,485.49/195,251.61 = 77,823.75/x
  3. Step 3: Cross multiply
    141,485.49x = 195,251.61 × 77,823.75
  4. Step 4: Simplify right side
    141,485.49x = 15,195,212,483.74
  5. Step 5: Solve for x
    x = 15,195,212,483.74/141,485.49
  6. Step 6: Final answer
    x = 107,397.67

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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.