Home / 211,873.13-292,312.50-121,196.06

Finding the Fourth Proportional to 211,873.13, 292,312.50 and 121,196.06

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Solution

The fourth proportional to 211,873.13, 292,312.50 and 121,196.06 is: 167,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,873.13 : 292,312.50 = 121,196.06 : x
  2. Step 2: Convert to fraction form
    211,873.13/292,312.50 = 121,196.06/x
  3. Step 3: Cross multiply
    211,873.13x = 292,312.50 × 121,196.06
  4. Step 4: Simplify right side
    211,873.13x = 35,427,123,288.75
  5. Step 5: Solve for x
    x = 35,427,123,288.75/211,873.13
  6. Step 6: Final answer
    x = 167,209.14

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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.