Home / 191,212.20-286,721.10-112,350.60

Finding the Fourth Proportional to 191,212.20, 286,721.10 and 112,350.60

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Solution

The fourth proportional to 191,212.20, 286,721.10 and 112,350.60 is: 168,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,212.20 : 286,721.10 = 112,350.60 : x
  2. Step 2: Convert to fraction form
    191,212.20/286,721.10 = 112,350.60/x
  3. Step 3: Cross multiply
    191,212.20x = 286,721.10 × 112,350.60
  4. Step 4: Simplify right side
    191,212.20x = 32,213,287,617.66
  5. Step 5: Solve for x
    x = 32,213,287,617.66/191,212.20
  6. Step 6: Final answer
    x = 168,468.79

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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.