Home / 176,110.66-243,032.71-100,660.78

Finding the Fourth Proportional to 176,110.66, 243,032.71 and 100,660.78

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Solution

The fourth proportional to 176,110.66, 243,032.71 and 100,660.78 is: 138,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,110.66 : 243,032.71 = 100,660.78 : x
  2. Step 2: Convert to fraction form
    176,110.66/243,032.71 = 100,660.78/x
  3. Step 3: Cross multiply
    176,110.66x = 243,032.71 × 100,660.78
  4. Step 4: Simplify right side
    176,110.66x = 24,463,862,154.11
  5. Step 5: Solve for x
    x = 24,463,862,154.11/176,110.66
  6. Step 6: Final answer
    x = 138,911.88

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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.