Home / 153,426.78-229,991.40-78,582.24

Finding the Fourth Proportional to 153,426.78, 229,991.40 and 78,582.24

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Solution

The fourth proportional to 153,426.78, 229,991.40 and 78,582.24 is: 117,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,426.78 : 229,991.40 = 78,582.24 : x
  2. Step 2: Convert to fraction form
    153,426.78/229,991.40 = 78,582.24/x
  3. Step 3: Cross multiply
    153,426.78x = 229,991.40 × 78,582.24
  4. Step 4: Simplify right side
    153,426.78x = 18,073,239,392.74
  5. Step 5: Solve for x
    x = 18,073,239,392.74/153,426.78
  6. Step 6: Final answer
    x = 117,797.16

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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.