Home / 157,510.74-217,326.33-100,998.66

Finding the Fourth Proportional to 157,510.74, 217,326.33 and 100,998.66

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Solution

The fourth proportional to 157,510.74, 217,326.33 and 100,998.66 is: 139,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,510.74 : 217,326.33 = 100,998.66 : x
  2. Step 2: Convert to fraction form
    157,510.74/217,326.33 = 100,998.66/x
  3. Step 3: Cross multiply
    157,510.74x = 217,326.33 × 100,998.66
  4. Step 4: Simplify right side
    157,510.74x = 21,949,668,112.72
  5. Step 5: Solve for x
    x = 21,949,668,112.72/157,510.74
  6. Step 6: Final answer
    x = 139,353.47

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1.5x scale

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.