Home / 141,778.62-195,655.10-78,116.40

Finding the Fourth Proportional to 141,778.62, 195,655.10 and 78,116.40

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Solution

The fourth proportional to 141,778.62, 195,655.10 and 78,116.40 is: 107,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,778.62 : 195,655.10 = 78,116.40 : x
  2. Step 2: Convert to fraction form
    141,778.62/195,655.10 = 78,116.40/x
  3. Step 3: Cross multiply
    141,778.62x = 195,655.10 × 78,116.40
  4. Step 4: Simplify right side
    141,778.62x = 15,283,871,663.06
  5. Step 5: Solve for x
    x = 15,283,871,663.06/141,778.62
  6. Step 6: Final answer
    x = 107,800.96

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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.