Home / 141,875.44-195,788.70-78,211.84

Finding the Fourth Proportional to 141,875.44, 195,788.70 and 78,211.84

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Solution

The fourth proportional to 141,875.44, 195,788.70 and 78,211.84 is: 107,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,875.44 : 195,788.70 = 78,211.84 : x
  2. Step 2: Convert to fraction form
    141,875.44/195,788.70 = 78,211.84/x
  3. Step 3: Cross multiply
    141,875.44x = 195,788.70 × 78,211.84
  4. Step 4: Simplify right side
    141,875.44x = 15,312,994,478.21
  5. Step 5: Solve for x
    x = 15,312,994,478.21/141,875.44
  6. Step 6: Final answer
    x = 107,932.67

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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.