Home / 178,122.50-245,810.68-121,532.66

Finding the Fourth Proportional to 178,122.50, 245,810.68 and 121,532.66

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Solution

The fourth proportional to 178,122.50, 245,810.68 and 121,532.66 is: 167,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,122.50 : 245,810.68 = 121,532.66 : x
  2. Step 2: Convert to fraction form
    178,122.50/245,810.68 = 121,532.66/x
  3. Step 3: Cross multiply
    178,122.50x = 245,810.68 × 121,532.66
  4. Step 4: Simplify right side
    178,122.50x = 29,874,025,796.81
  5. Step 5: Solve for x
    x = 29,874,025,796.81/178,122.50
  6. Step 6: Final answer
    x = 167,716.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.