Home / 117,319.40-175,979.10-113,172.20

Finding the Fourth Proportional to 117,319.40, 175,979.10 and 113,172.20

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Solution

The fourth proportional to 117,319.40, 175,979.10 and 113,172.20 is: 169,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,319.40 : 175,979.10 = 113,172.20 : x
  2. Step 2: Convert to fraction form
    117,319.40/175,979.10 = 113,172.20/x
  3. Step 3: Cross multiply
    117,319.40x = 175,979.10 × 113,172.20
  4. Step 4: Simplify right side
    117,319.40x = 19,915,941,901.02
  5. Step 5: Solve for x
    x = 19,915,941,901.02/117,319.40
  6. Step 6: Final answer
    x = 169,758.30

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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.