Home / 151,635.02-209,188.67-87,935.90

Finding the Fourth Proportional to 151,635.02, 209,188.67 and 87,935.90

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Solution

The fourth proportional to 151,635.02, 209,188.67 and 87,935.90 is: 121,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,635.02 : 209,188.67 = 87,935.90 : x
  2. Step 2: Convert to fraction form
    151,635.02/209,188.67 = 87,935.90/x
  3. Step 3: Cross multiply
    151,635.02x = 209,188.67 × 87,935.90
  4. Step 4: Simplify right side
    151,635.02x = 18,395,192,480.63
  5. Step 5: Solve for x
    x = 18,395,192,480.63/151,635.02
  6. Step 6: Final answer
    x = 121,312.30

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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.