Home / 113,287.68-156,298.06-70,251.70

Finding the Fourth Proportional to 113,287.68, 156,298.06 and 70,251.70

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Solution

The fourth proportional to 113,287.68, 156,298.06 and 70,251.70 is: 96,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,287.68 : 156,298.06 = 70,251.70 : x
  2. Step 2: Convert to fraction form
    113,287.68/156,298.06 = 70,251.70/x
  3. Step 3: Cross multiply
    113,287.68x = 156,298.06 × 70,251.70
  4. Step 4: Simplify right side
    113,287.68x = 10,980,204,421.70
  5. Step 5: Solve for x
    x = 10,980,204,421.70/113,287.68
  6. Step 6: Final answer
    x = 96,923.20

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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.