Home / 205,101.12-307,239.59-102,208.08

Finding the Fourth Proportional to 205,101.12, 307,239.59 and 102,208.08

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Solution

The fourth proportional to 205,101.12, 307,239.59 and 102,208.08 is: 153,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,101.12 : 307,239.59 = 102,208.08 : x
  2. Step 2: Convert to fraction form
    205,101.12/307,239.59 = 102,208.08/x
  3. Step 3: Cross multiply
    205,101.12x = 307,239.59 × 102,208.08
  4. Step 4: Simplify right side
    205,101.12x = 31,402,368,082.85
  5. Step 5: Solve for x
    x = 31,402,368,082.85/205,101.12
  6. Step 6: Final answer
    x = 153,106.76

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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.