Home / 155,767.65-214,959.21-84,147.66

Finding the Fourth Proportional to 155,767.65, 214,959.21 and 84,147.66

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Solution

The fourth proportional to 155,767.65, 214,959.21 and 84,147.66 is: 116,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,767.65 : 214,959.21 = 84,147.66 : x
  2. Step 2: Convert to fraction form
    155,767.65/214,959.21 = 84,147.66/x
  3. Step 3: Cross multiply
    155,767.65x = 214,959.21 × 84,147.66
  4. Step 4: Simplify right side
    155,767.65x = 18,088,314,516.95
  5. Step 5: Solve for x
    x = 18,088,314,516.95/155,767.65
  6. Step 6: Final answer
    x = 116,123.69

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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.