Home / 147,321.28-203,293.80-86,878.07

Finding the Fourth Proportional to 147,321.28, 203,293.80 and 86,878.07

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Solution

The fourth proportional to 147,321.28, 203,293.80 and 86,878.07 is: 119,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,321.28 : 203,293.80 = 86,878.07 : x
  2. Step 2: Convert to fraction form
    147,321.28/203,293.80 = 86,878.07/x
  3. Step 3: Cross multiply
    147,321.28x = 203,293.80 × 86,878.07
  4. Step 4: Simplify right side
    147,321.28x = 17,661,772,732.85
  5. Step 5: Solve for x
    x = 17,661,772,732.85/147,321.28
  6. Step 6: Final answer
    x = 119,886.09

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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.