Home / 111,781.40-154,280.23-64,066.73

Finding the Fourth Proportional to 111,781.40, 154,280.23 and 64,066.73

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Solution

The fourth proportional to 111,781.40, 154,280.23 and 64,066.73 is: 88,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,781.40 : 154,280.23 = 64,066.73 : x
  2. Step 2: Convert to fraction form
    111,781.40/154,280.23 = 64,066.73/x
  3. Step 3: Cross multiply
    111,781.40x = 154,280.23 × 64,066.73
  4. Step 4: Simplify right side
    111,781.40x = 9,884,228,908.18
  5. Step 5: Solve for x
    x = 9,884,228,908.18/111,781.40
  6. Step 6: Final answer
    x = 88,424.63

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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.