Home / 147,305.08-203,275.88-90,040.61

Finding the Fourth Proportional to 147,305.08, 203,275.88 and 90,040.61

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Solution

The fourth proportional to 147,305.08, 203,275.88 and 90,040.61 is: 124,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,305.08 : 203,275.88 = 90,040.61 : x
  2. Step 2: Convert to fraction form
    147,305.08/203,275.88 = 90,040.61/x
  3. Step 3: Cross multiply
    147,305.08x = 203,275.88 × 90,040.61
  4. Step 4: Simplify right side
    147,305.08x = 18,303,084,629.13
  5. Step 5: Solve for x
    x = 18,303,084,629.13/147,305.08
  6. Step 6: Final answer
    x = 124,252.91

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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.