Home / 130,276.64-195,213.20-90,373.23

Finding the Fourth Proportional to 130,276.64, 195,213.20 and 90,373.23

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Solution

The fourth proportional to 130,276.64, 195,213.20 and 90,373.23 is: 135,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,276.64 : 195,213.20 = 90,373.23 : x
  2. Step 2: Convert to fraction form
    130,276.64/195,213.20 = 90,373.23/x
  3. Step 3: Cross multiply
    130,276.64x = 195,213.20 × 90,373.23
  4. Step 4: Simplify right side
    130,276.64x = 17,642,046,970.77
  5. Step 5: Solve for x
    x = 17,642,046,970.77/130,276.64
  6. Step 6: Final answer
    x = 135,419.88

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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.