Home / 142,066.57-196,115.81-93,697.20

Finding the Fourth Proportional to 142,066.57, 196,115.81 and 93,697.20

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Solution

The fourth proportional to 142,066.57, 196,115.81 and 93,697.20 is: 129,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,066.57 : 196,115.81 = 93,697.20 : x
  2. Step 2: Convert to fraction form
    142,066.57/196,115.81 = 93,697.20/x
  3. Step 3: Cross multiply
    142,066.57x = 196,115.81 × 93,697.20
  4. Step 4: Simplify right side
    142,066.57x = 18,375,500,823.67
  5. Step 5: Solve for x
    x = 18,375,500,823.67/142,066.57
  6. Step 6: Final answer
    x = 129,344.30

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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.