Home / 212,156.28-292,775.31-121,541.58

Finding the Fourth Proportional to 212,156.28, 292,775.31 and 121,541.58

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Solution

The fourth proportional to 212,156.28, 292,775.31 and 121,541.58 is: 167,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,156.28 : 292,775.31 = 121,541.58 : x
  2. Step 2: Convert to fraction form
    212,156.28/292,775.31 = 121,541.58/x
  3. Step 3: Cross multiply
    212,156.28x = 292,775.31 × 121,541.58
  4. Step 4: Simplify right side
    212,156.28x = 35,584,373,762.39
  5. Step 5: Solve for x
    x = 35,584,373,762.39/212,156.28
  6. Step 6: Final answer
    x = 167,727.18

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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.