Home / 212,258.66-292,958.78-121,675.40

Finding the Fourth Proportional to 212,258.66, 292,958.78 and 121,675.40

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Solution

The fourth proportional to 212,258.66, 292,958.78 and 121,675.40 is: 167,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,258.66 : 292,958.78 = 121,675.40 : x
  2. Step 2: Convert to fraction form
    212,258.66/292,958.78 = 121,675.40/x
  3. Step 3: Cross multiply
    212,258.66x = 292,958.78 × 121,675.40
  4. Step 4: Simplify right side
    212,258.66x = 35,645,874,666.84
  5. Step 5: Solve for x
    x = 35,645,874,666.84/212,258.66
  6. Step 6: Final answer
    x = 167,936.02

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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.