Home / 141,812.52-195,705.37-78,154.42

Finding the Fourth Proportional to 141,812.52, 195,705.37 and 78,154.42

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Solution

The fourth proportional to 141,812.52, 195,705.37 and 78,154.42 is: 107,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,812.52 : 195,705.37 = 78,154.42 : x
  2. Step 2: Convert to fraction form
    141,812.52/195,705.37 = 78,154.42/x
  3. Step 3: Cross multiply
    141,812.52x = 195,705.37 × 78,154.42
  4. Step 4: Simplify right side
    141,812.52x = 15,295,238,704.71
  5. Step 5: Solve for x
    x = 15,295,238,704.71/141,812.52
  6. Step 6: Final answer
    x = 107,855.35

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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.