Home / 205,007.10-307,510.65-92,643.90

Finding the Fourth Proportional to 205,007.10, 307,510.65 and 92,643.90

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Solution

The fourth proportional to 205,007.10, 307,510.65 and 92,643.90 is: 138,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,007.10 : 307,510.65 = 92,643.90 : x
  2. Step 2: Convert to fraction form
    205,007.10/307,510.65 = 92,643.90/x
  3. Step 3: Cross multiply
    205,007.10x = 307,510.65 × 92,643.90
  4. Step 4: Simplify right side
    205,007.10x = 28,488,985,907.54
  5. Step 5: Solve for x
    x = 28,488,985,907.54/205,007.10
  6. Step 6: Final answer
    x = 138,965.85

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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.