Home / 91,289.25-126,140.13-70,250.31

Finding the Fourth Proportional to 91,289.25, 126,140.13 and 70,250.31

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Solution

The fourth proportional to 91,289.25, 126,140.13 and 70,250.31 is: 97,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,289.25 : 126,140.13 = 70,250.31 : x
  2. Step 2: Convert to fraction form
    91,289.25/126,140.13 = 70,250.31/x
  3. Step 3: Cross multiply
    91,289.25x = 126,140.13 × 70,250.31
  4. Step 4: Simplify right side
    91,289.25x = 8,861,383,235.94
  5. Step 5: Solve for x
    x = 8,861,383,235.94/91,289.25
  6. Step 6: Final answer
    x = 97,069.30

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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.