Home / 207,146.30-285,819.03-121,088.66

Finding the Fourth Proportional to 207,146.30, 285,819.03 and 121,088.66

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Solution

The fourth proportional to 207,146.30, 285,819.03 and 121,088.66 is: 167,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,146.30 : 285,819.03 = 121,088.66 : x
  2. Step 2: Convert to fraction form
    207,146.30/285,819.03 = 121,088.66/x
  3. Step 3: Cross multiply
    207,146.30x = 285,819.03 × 121,088.66
  4. Step 4: Simplify right side
    207,146.30x = 34,609,441,916.10
  5. Step 5: Solve for x
    x = 34,609,441,916.10/207,146.30
  6. Step 6: Final answer
    x = 167,077.29

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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.