Home / 130,975.20-196,462.80-89,503.20

Finding the Fourth Proportional to 130,975.20, 196,462.80 and 89,503.20

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Solution

The fourth proportional to 130,975.20, 196,462.80 and 89,503.20 is: 134,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,975.20 : 196,462.80 = 89,503.20 : x
  2. Step 2: Convert to fraction form
    130,975.20/196,462.80 = 89,503.20/x
  3. Step 3: Cross multiply
    130,975.20x = 196,462.80 × 89,503.20
  4. Step 4: Simplify right side
    130,975.20x = 17,584,049,280.96
  5. Step 5: Solve for x
    x = 17,584,049,280.96/130,975.20
  6. Step 6: Final answer
    x = 134,254.80

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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.