Home / 126,225.40-189,107.70-102,724.60

Finding the Fourth Proportional to 126,225.40, 189,107.70 and 102,724.60

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Solution

The fourth proportional to 126,225.40, 189,107.70 and 102,724.60 is: 153,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,225.40 : 189,107.70 = 102,724.60 : x
  2. Step 2: Convert to fraction form
    126,225.40/189,107.70 = 102,724.60/x
  3. Step 3: Cross multiply
    126,225.40x = 189,107.70 × 102,724.60
  4. Step 4: Simplify right side
    126,225.40x = 19,426,012,839.42
  5. Step 5: Solve for x
    x = 19,426,012,839.42/126,225.40
  6. Step 6: Final answer
    x = 153,899.40

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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.