Home / 107,921.20-161,881.80-98,244.40

Finding the Fourth Proportional to 107,921.20, 161,881.80 and 98,244.40

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Solution

The fourth proportional to 107,921.20, 161,881.80 and 98,244.40 is: 147,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,921.20 : 161,881.80 = 98,244.40 : x
  2. Step 2: Convert to fraction form
    107,921.20/161,881.80 = 98,244.40/x
  3. Step 3: Cross multiply
    107,921.20x = 161,881.80 × 98,244.40
  4. Step 4: Simplify right side
    107,921.20x = 15,903,980,311.92
  5. Step 5: Solve for x
    x = 15,903,980,311.92/107,921.20
  6. Step 6: Final answer
    x = 147,366.60

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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.