Home / 166,503.20-249,754.80-82,279.40

Finding the Fourth Proportional to 166,503.20, 249,754.80 and 82,279.40

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Solution

The fourth proportional to 166,503.20, 249,754.80 and 82,279.40 is: 123,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,503.20 : 249,754.80 = 82,279.40 : x
  2. Step 2: Convert to fraction form
    166,503.20/249,754.80 = 82,279.40/x
  3. Step 3: Cross multiply
    166,503.20x = 249,754.80 × 82,279.40
  4. Step 4: Simplify right side
    166,503.20x = 20,549,675,091.12
  5. Step 5: Solve for x
    x = 20,549,675,091.12/166,503.20
  6. Step 6: Final answer
    x = 123,419.10

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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.