Home / 141,711.10-195,557.30-77,178.88

Finding the Fourth Proportional to 141,711.10, 195,557.30 and 77,178.88

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Solution

The fourth proportional to 141,711.10, 195,557.30 and 77,178.88 is: 106,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,711.10 : 195,557.30 = 77,178.88 : x
  2. Step 2: Convert to fraction form
    141,711.10/195,557.30 = 77,178.88/x
  3. Step 3: Cross multiply
    141,711.10x = 195,557.30 × 77,178.88
  4. Step 4: Simplify right side
    141,711.10x = 15,092,893,389.82
  5. Step 5: Solve for x
    x = 15,092,893,389.82/141,711.10
  6. Step 6: Final answer
    x = 106,504.67

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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.