Home / 141,875.05-195,788.88-78,215.13

Finding the Fourth Proportional to 141,875.05, 195,788.88 and 78,215.13

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Solution

The fourth proportional to 141,875.05, 195,788.88 and 78,215.13 is: 107,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,875.05 : 195,788.88 = 78,215.13 : x
  2. Step 2: Convert to fraction form
    141,875.05/195,788.88 = 78,215.13/x
  3. Step 3: Cross multiply
    141,875.05x = 195,788.88 × 78,215.13
  4. Step 4: Simplify right side
    141,875.05x = 15,313,652,701.75
  5. Step 5: Solve for x
    x = 15,313,652,701.75/141,875.05
  6. Step 6: Final answer
    x = 107,937.60

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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.