Home / 147,699.24-203,840.28-90,376.80

Finding the Fourth Proportional to 147,699.24, 203,840.28 and 90,376.80

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Solution

The fourth proportional to 147,699.24, 203,840.28 and 90,376.80 is: 124,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,699.24 : 203,840.28 = 90,376.80 : x
  2. Step 2: Convert to fraction form
    147,699.24/203,840.28 = 90,376.80/x
  3. Step 3: Cross multiply
    147,699.24x = 203,840.28 × 90,376.80
  4. Step 4: Simplify right side
    147,699.24x = 18,422,432,217.50
  5. Step 5: Solve for x
    x = 18,422,432,217.50/147,699.24
  6. Step 6: Final answer
    x = 124,729.36

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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.