Home / 152,948.64-229,563.01-78,121.23

Finding the Fourth Proportional to 152,948.64, 229,563.01 and 78,121.23

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Solution

The fourth proportional to 152,948.64, 229,563.01 and 78,121.23 is: 117,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,948.64 : 229,563.01 = 78,121.23 : x
  2. Step 2: Convert to fraction form
    152,948.64/229,563.01 = 78,121.23/x
  3. Step 3: Cross multiply
    152,948.64x = 229,563.01 × 78,121.23
  4. Step 4: Simplify right side
    152,948.64x = 17,933,745,877.43
  5. Step 5: Solve for x
    x = 17,933,745,877.43/152,948.64
  6. Step 6: Final answer
    x = 117,253.38

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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.