Home / 147,643.50-203,758.92-84,001.80

Finding the Fourth Proportional to 147,643.50, 203,758.92 and 84,001.80

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Solution

The fourth proportional to 147,643.50, 203,758.92 and 84,001.80 is: 115,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,643.50 : 203,758.92 = 84,001.80 : x
  2. Step 2: Convert to fraction form
    147,643.50/203,758.92 = 84,001.80/x
  3. Step 3: Cross multiply
    147,643.50x = 203,758.92 × 84,001.80
  4. Step 4: Simplify right side
    147,643.50x = 17,116,116,046.06
  5. Step 5: Solve for x
    x = 17,116,116,046.06/147,643.50
  6. Step 6: Final answer
    x = 115,928.68

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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.