Home / 130,854.10-196,281.15-121,231.30

Finding the Fourth Proportional to 130,854.10, 196,281.15 and 121,231.30

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Solution

The fourth proportional to 130,854.10, 196,281.15 and 121,231.30 is: 181,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,854.10 : 196,281.15 = 121,231.30 : x
  2. Step 2: Convert to fraction form
    130,854.10/196,281.15 = 121,231.30/x
  3. Step 3: Cross multiply
    130,854.10x = 196,281.15 × 121,231.30
  4. Step 4: Simplify right side
    130,854.10x = 23,795,418,980.00
  5. Step 5: Solve for x
    x = 23,795,418,980.00/130,854.10
  6. Step 6: Final answer
    x = 181,846.95

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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.