Home / 212,005.21-292,585.14-144,172.66

Finding the Fourth Proportional to 212,005.21, 292,585.14 and 144,172.66

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Solution

The fourth proportional to 212,005.21, 292,585.14 and 144,172.66 is: 198,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,005.21 : 292,585.14 = 144,172.66 : x
  2. Step 2: Convert to fraction form
    212,005.21/292,585.14 = 144,172.66/x
  3. Step 3: Cross multiply
    212,005.21x = 292,585.14 × 144,172.66
  4. Step 4: Simplify right side
    212,005.21x = 42,182,777,910.27
  5. Step 5: Solve for x
    x = 42,182,777,910.27/212,005.21
  6. Step 6: Final answer
    x = 198,970.48

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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.