Home / 142,195.40-212,985.90-117,619.40

Finding the Fourth Proportional to 142,195.40, 212,985.90 and 117,619.40

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Solution

The fourth proportional to 142,195.40, 212,985.90 and 117,619.40 is: 176,174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,195.40 : 212,985.90 = 117,619.40 : x
  2. Step 2: Convert to fraction form
    142,195.40/212,985.90 = 117,619.40/x
  3. Step 3: Cross multiply
    142,195.40x = 212,985.90 × 117,619.40
  4. Step 4: Simplify right side
    142,195.40x = 25,051,273,766.46
  5. Step 5: Solve for x
    x = 25,051,273,766.46/142,195.40
  6. Step 6: Final answer
    x = 176,174.99

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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.