Home / 168,774.20-253,226.10-166,117.40

Finding the Fourth Proportional to 168,774.20, 253,226.10 and 166,117.40

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Solution

The fourth proportional to 168,774.20, 253,226.10 and 166,117.40 is: 249,239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,774.20 : 253,226.10 = 166,117.40 : x
  2. Step 2: Convert to fraction form
    168,774.20/253,226.10 = 166,117.40/x
  3. Step 3: Cross multiply
    168,774.20x = 253,226.10 × 166,117.40
  4. Step 4: Simplify right side
    168,774.20x = 42,065,261,344.14
  5. Step 5: Solve for x
    x = 42,065,261,344.14/168,774.20
  6. Step 6: Final answer
    x = 249,239.88

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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.