Home / 153,934.20-230,901.30-138,187.80

Finding the Fourth Proportional to 153,934.20, 230,901.30 and 138,187.80

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Solution

The fourth proportional to 153,934.20, 230,901.30 and 138,187.80 is: 207,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.20 : 230,901.30 = 138,187.80 : x
  2. Step 2: Convert to fraction form
    153,934.20/230,901.30 = 138,187.80/x
  3. Step 3: Cross multiply
    153,934.20x = 230,901.30 × 138,187.80
  4. Step 4: Simplify right side
    153,934.20x = 31,907,742,664.14
  5. Step 5: Solve for x
    x = 31,907,742,664.14/153,934.20
  6. Step 6: Final answer
    x = 207,281.70

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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.