Home / 126,711.79-174,792.08-81,338.83

Finding the Fourth Proportional to 126,711.79, 174,792.08 and 81,338.83

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Solution

The fourth proportional to 126,711.79, 174,792.08 and 81,338.83 is: 112,202.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,711.79 : 174,792.08 = 81,338.83 : x
  2. Step 2: Convert to fraction form
    126,711.79/174,792.08 = 81,338.83/x
  3. Step 3: Cross multiply
    126,711.79x = 174,792.08 × 81,338.83
  4. Step 4: Simplify right side
    126,711.79x = 14,217,383,280.47
  5. Step 5: Solve for x
    x = 14,217,383,280.47/126,711.79
  6. Step 6: Final answer
    x = 112,202.53

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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.