Home / 212,248.72-292,944.90-121,665.40

Finding the Fourth Proportional to 212,248.72, 292,944.90 and 121,665.40

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Solution

The fourth proportional to 212,248.72, 292,944.90 and 121,665.40 is: 167,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,248.72 : 292,944.90 = 121,665.40 : x
  2. Step 2: Convert to fraction form
    212,248.72/292,944.90 = 121,665.40/x
  3. Step 3: Cross multiply
    212,248.72x = 292,944.90 × 121,665.40
  4. Step 4: Simplify right side
    212,248.72x = 35,641,258,436.46
  5. Step 5: Solve for x
    x = 35,641,258,436.46/212,248.72
  6. Step 6: Final answer
    x = 167,922.14

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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.