Home / 130,854.20-196,281.30-121,134.20

Finding the Fourth Proportional to 130,854.20, 196,281.30 and 121,134.20

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Solution

The fourth proportional to 130,854.20, 196,281.30 and 121,134.20 is: 181,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,854.20 : 196,281.30 = 121,134.20 : x
  2. Step 2: Convert to fraction form
    130,854.20/196,281.30 = 121,134.20/x
  3. Step 3: Cross multiply
    130,854.20x = 196,281.30 × 121,134.20
  4. Step 4: Simplify right side
    130,854.20x = 23,776,378,250.46
  5. Step 5: Solve for x
    x = 23,776,378,250.46/130,854.20
  6. Step 6: Final answer
    x = 181,701.30

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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.