Home / 207,918.90-311,878.35-137,060.10

Finding the Fourth Proportional to 207,918.90, 311,878.35 and 137,060.10

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Solution

The fourth proportional to 207,918.90, 311,878.35 and 137,060.10 is: 205,590.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,918.90 : 311,878.35 = 137,060.10 : x
  2. Step 2: Convert to fraction form
    207,918.90/311,878.35 = 137,060.10/x
  3. Step 3: Cross multiply
    207,918.90x = 311,878.35 × 137,060.10
  4. Step 4: Simplify right side
    207,918.90x = 42,746,077,838.84
  5. Step 5: Solve for x
    x = 42,746,077,838.84/207,918.90
  6. Step 6: Final answer
    x = 205,590.15

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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.