Home / 141,564.60-195,354.18-77,900.76

Finding the Fourth Proportional to 141,564.60, 195,354.18 and 77,900.76

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Solution

The fourth proportional to 141,564.60, 195,354.18 and 77,900.76 is: 107,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,564.60 : 195,354.18 = 77,900.76 : x
  2. Step 2: Convert to fraction form
    141,564.60/195,354.18 = 77,900.76/x
  3. Step 3: Cross multiply
    141,564.60x = 195,354.18 × 77,900.76
  4. Step 4: Simplify right side
    141,564.60x = 15,218,239,091.18
  5. Step 5: Solve for x
    x = 15,218,239,091.18/141,564.60
  6. Step 6: Final answer
    x = 107,500.31

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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.