Home / 151,644.02-209,201.08-87,944.90

Finding the Fourth Proportional to 151,644.02, 209,201.08 and 87,944.90

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Solution

The fourth proportional to 151,644.02, 209,201.08 and 87,944.90 is: 121,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,644.02 : 209,201.08 = 87,944.90 : x
  2. Step 2: Convert to fraction form
    151,644.02/209,201.08 = 87,944.90/x
  3. Step 3: Cross multiply
    151,644.02x = 209,201.08 × 87,944.90
  4. Step 4: Simplify right side
    151,644.02x = 18,398,168,060.49
  5. Step 5: Solve for x
    x = 18,398,168,060.49/151,644.02
  6. Step 6: Final answer
    x = 121,324.72

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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.