Home / 191,770.16-287,530.68-79,419.92

Finding the Fourth Proportional to 191,770.16, 287,530.68 and 79,419.92

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Solution

The fourth proportional to 191,770.16, 287,530.68 and 79,419.92 is: 119,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,770.16 : 287,530.68 = 79,419.92 : x
  2. Step 2: Convert to fraction form
    191,770.16/287,530.68 = 79,419.92/x
  3. Step 3: Cross multiply
    191,770.16x = 287,530.68 × 79,419.92
  4. Step 4: Simplify right side
    191,770.16x = 22,835,663,603.15
  5. Step 5: Solve for x
    x = 22,835,663,603.15/191,770.16
  6. Step 6: Final answer
    x = 119,078.29

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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.