Home / 212,228.52-292,916.96-121,645.20

Finding the Fourth Proportional to 212,228.52, 292,916.96 and 121,645.20

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Solution

The fourth proportional to 212,228.52, 292,916.96 and 121,645.20 is: 167,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,228.52 : 292,916.96 = 121,645.20 : x
  2. Step 2: Convert to fraction form
    212,228.52/292,916.96 = 121,645.20/x
  3. Step 3: Cross multiply
    212,228.52x = 292,916.96 × 121,645.20
  4. Step 4: Simplify right side
    212,228.52x = 35,631,942,182.59
  5. Step 5: Solve for x
    x = 35,631,942,182.59/212,228.52
  6. Step 6: Final answer
    x = 167,894.22

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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.