Home / 162,213.76-243,320.40-51,397.12

Finding the Fourth Proportional to 162,213.76, 243,320.40 and 51,397.12

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Solution

The fourth proportional to 162,213.76, 243,320.40 and 51,397.12 is: 77,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,213.76 : 243,320.40 = 51,397.12 : x
  2. Step 2: Convert to fraction form
    162,213.76/243,320.40 = 51,397.12/x
  3. Step 3: Cross multiply
    162,213.76x = 243,320.40 × 51,397.12
  4. Step 4: Simplify right side
    162,213.76x = 12,505,967,797.25
  5. Step 5: Solve for x
    x = 12,505,967,797.25/162,213.76
  6. Step 6: Final answer
    x = 77,095.60

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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.