Home / 205,153.98-307,700.18-64,894.38

Finding the Fourth Proportional to 205,153.98, 307,700.18 and 64,894.38

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Solution

The fourth proportional to 205,153.98, 307,700.18 and 64,894.38 is: 97,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,153.98 : 307,700.18 = 64,894.38 : x
  2. Step 2: Convert to fraction form
    205,153.98/307,700.18 = 64,894.38/x
  3. Step 3: Cross multiply
    205,153.98x = 307,700.18 × 64,894.38
  4. Step 4: Simplify right side
    205,153.98x = 19,968,012,406.99
  5. Step 5: Solve for x
    x = 19,968,012,406.99/205,153.98
  6. Step 6: Final answer
    x = 97,331.83

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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.