Home / 141,945.84-195,885.96-78,283.56

Finding the Fourth Proportional to 141,945.84, 195,885.96 and 78,283.56

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Solution

The fourth proportional to 141,945.84, 195,885.96 and 78,283.56 is: 108,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,945.84 : 195,885.96 = 78,283.56 : x
  2. Step 2: Convert to fraction form
    141,945.84/195,885.96 = 78,283.56/x
  3. Step 3: Cross multiply
    141,945.84x = 195,885.96 × 78,283.56
  4. Step 4: Simplify right side
    141,945.84x = 15,334,650,302.82
  5. Step 5: Solve for x
    x = 15,334,650,302.82/141,945.84
  6. Step 6: Final answer
    x = 108,031.70

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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.