Home / 191,567.38-287,351.15-79,124.02

Finding the Fourth Proportional to 191,567.38, 287,351.15 and 79,124.02

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Solution

The fourth proportional to 191,567.38, 287,351.15 and 79,124.02 is: 118,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,567.38 : 287,351.15 = 79,124.02 : x
  2. Step 2: Convert to fraction form
    191,567.38/287,351.15 = 79,124.02/x
  3. Step 3: Cross multiply
    191,567.38x = 287,351.15 × 79,124.02
  4. Step 4: Simplify right side
    191,567.38x = 22,736,378,641.98
  5. Step 5: Solve for x
    x = 22,736,378,641.98/191,567.38
  6. Step 6: Final answer
    x = 118,686.07

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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.