Home / 162,311.40-243,758.70-117,988.20

Finding the Fourth Proportional to 162,311.40, 243,758.70 and 117,988.20

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Solution

The fourth proportional to 162,311.40, 243,758.70 and 117,988.20 is: 177,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,311.40 : 243,758.70 = 117,988.20 : x
  2. Step 2: Convert to fraction form
    162,311.40/243,758.70 = 117,988.20/x
  3. Step 3: Cross multiply
    162,311.40x = 243,758.70 × 117,988.20
  4. Step 4: Simplify right side
    162,311.40x = 28,760,650,247.34
  5. Step 5: Solve for x
    x = 28,760,650,247.34/162,311.40
  6. Step 6: Final answer
    x = 177,194.27

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1.5x scale

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.