Home / 212,005.22-292,585.16-144,172.68

Finding the Fourth Proportional to 212,005.22, 292,585.16 and 144,172.68

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Solution

The fourth proportional to 212,005.22, 292,585.16 and 144,172.68 is: 198,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,005.22 : 292,585.16 = 144,172.68 : x
  2. Step 2: Convert to fraction form
    212,005.22/292,585.16 = 144,172.68/x
  3. Step 3: Cross multiply
    212,005.22x = 292,585.16 × 144,172.68
  4. Step 4: Simplify right side
    212,005.22x = 42,182,786,645.43
  5. Step 5: Solve for x
    x = 42,182,786,645.43/212,005.22
  6. Step 6: Final answer
    x = 198,970.51

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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.