Home / 102,628.49-153,987.08-55,188.13

Finding the Fourth Proportional to 102,628.49, 153,987.08 and 55,188.13

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Solution

The fourth proportional to 102,628.49, 153,987.08 and 55,188.13 is: 82,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,628.49 : 153,987.08 = 55,188.13 : x
  2. Step 2: Convert to fraction form
    102,628.49/153,987.08 = 55,188.13/x
  3. Step 3: Cross multiply
    102,628.49x = 153,987.08 × 55,188.13
  4. Step 4: Simplify right side
    102,628.49x = 8,498,258,989.36
  5. Step 5: Solve for x
    x = 8,498,258,989.36/102,628.49
  6. Step 6: Final answer
    x = 82,806.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.