Home / 456,766.71-685,244.64-136,905.66

Finding the Fourth Proportional to 456,766.71, 685,244.64 and 136,905.66

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Solution

The fourth proportional to 456,766.71, 685,244.64 and 136,905.66 is: 205,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,766.71 : 685,244.64 = 136,905.66 : x
  2. Step 2: Convert to fraction form
    456,766.71/685,244.64 = 136,905.66/x
  3. Step 3: Cross multiply
    456,766.71x = 685,244.64 × 136,905.66
  4. Step 4: Simplify right side
    456,766.71x = 93,813,869,700.66
  5. Step 5: Solve for x
    x = 93,813,869,700.66/456,766.71
  6. Step 6: Final answer
    x = 205,386.84

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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.