Home / 162,002.30-243,003.45-112,138.70

Finding the Fourth Proportional to 162,002.30, 243,003.45 and 112,138.70

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Solution

The fourth proportional to 162,002.30, 243,003.45 and 112,138.70 is: 168,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,002.30 : 243,003.45 = 112,138.70 : x
  2. Step 2: Convert to fraction form
    162,002.30/243,003.45 = 112,138.70/x
  3. Step 3: Cross multiply
    162,002.30x = 243,003.45 × 112,138.70
  4. Step 4: Simplify right side
    162,002.30x = 27,250,090,978.52
  5. Step 5: Solve for x
    x = 27,250,090,978.52/162,002.30
  6. Step 6: Final answer
    x = 168,208.05

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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.