Home / 191,904.20-287,298.75-111,697.34

Finding the Fourth Proportional to 191,904.20, 287,298.75 and 111,697.34

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Solution

The fourth proportional to 191,904.20, 287,298.75 and 111,697.34 is: 167,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,904.20 : 287,298.75 = 111,697.34 : x
  2. Step 2: Convert to fraction form
    191,904.20/287,298.75 = 111,697.34/x
  3. Step 3: Cross multiply
    191,904.20x = 287,298.75 × 111,697.34
  4. Step 4: Simplify right side
    191,904.20x = 32,090,506,160.33
  5. Step 5: Solve for x
    x = 32,090,506,160.33/191,904.20
  6. Step 6: Final answer
    x = 167,221.49

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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.