Home / 205,666.10-308,505.98-70,728.84

Finding the Fourth Proportional to 205,666.10, 308,505.98 and 70,728.84

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Solution

The fourth proportional to 205,666.10, 308,505.98 and 70,728.84 is: 106,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,666.10 : 308,505.98 = 70,728.84 : x
  2. Step 2: Convert to fraction form
    205,666.10/308,505.98 = 70,728.84/x
  3. Step 3: Cross multiply
    205,666.10x = 308,505.98 × 70,728.84
  4. Step 4: Simplify right side
    205,666.10x = 21,820,270,275.29
  5. Step 5: Solve for x
    x = 21,820,270,275.29/205,666.10
  6. Step 6: Final answer
    x = 106,095.61

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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.