Home / 147,007.28-220,233.44-86,856.28

Finding the Fourth Proportional to 147,007.28, 220,233.44 and 86,856.28

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Solution

The fourth proportional to 147,007.28, 220,233.44 and 86,856.28 is: 130,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,007.28 : 220,233.44 = 86,856.28 : x
  2. Step 2: Convert to fraction form
    147,007.28/220,233.44 = 86,856.28/x
  3. Step 3: Cross multiply
    147,007.28x = 220,233.44 × 86,856.28
  4. Step 4: Simplify right side
    147,007.28x = 19,128,657,330.00
  5. Step 5: Solve for x
    x = 19,128,657,330.00/147,007.28
  6. Step 6: Final answer
    x = 130,120.48

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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.