Home / 141,818.85-195,705.18-78,156.63

Finding the Fourth Proportional to 141,818.85, 195,705.18 and 78,156.63

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Solution

The fourth proportional to 141,818.85, 195,705.18 and 78,156.63 is: 107,853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,818.85 : 195,705.18 = 78,156.63 : x
  2. Step 2: Convert to fraction form
    141,818.85/195,705.18 = 78,156.63/x
  3. Step 3: Cross multiply
    141,818.85x = 195,705.18 × 78,156.63
  4. Step 4: Simplify right side
    141,818.85x = 15,295,657,342.34
  5. Step 5: Solve for x
    x = 15,295,657,342.34/141,818.85
  6. Step 6: Final answer
    x = 107,853.49

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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.