Home / 128,003.16-191,861.66-47,964.14

Finding the Fourth Proportional to 128,003.16, 191,861.66 and 47,964.14

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Solution

The fourth proportional to 128,003.16, 191,861.66 and 47,964.14 is: 71,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,003.16 : 191,861.66 = 47,964.14 : x
  2. Step 2: Convert to fraction form
    128,003.16/191,861.66 = 47,964.14/x
  3. Step 3: Cross multiply
    128,003.16x = 191,861.66 × 47,964.14
  4. Step 4: Simplify right side
    128,003.16x = 9,202,478,681.47
  5. Step 5: Solve for x
    x = 9,202,478,681.47/128,003.16
  6. Step 6: Final answer
    x = 71,892.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.