Home / 207,154.34-285,830.07-121,096.61

Finding the Fourth Proportional to 207,154.34, 285,830.07 and 121,096.61

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Solution

The fourth proportional to 207,154.34, 285,830.07 and 121,096.61 is: 167,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,154.34 : 285,830.07 = 121,096.61 : x
  2. Step 2: Convert to fraction form
    207,154.34/285,830.07 = 121,096.61/x
  3. Step 3: Cross multiply
    207,154.34x = 285,830.07 × 121,096.61
  4. Step 4: Simplify right side
    207,154.34x = 34,613,052,513.06
  5. Step 5: Solve for x
    x = 34,613,052,513.06/207,154.34
  6. Step 6: Final answer
    x = 167,088.23

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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.