Home / 147,334.32-220,811.92-128,281.00

Finding the Fourth Proportional to 147,334.32, 220,811.92 and 128,281.00

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Solution

The fourth proportional to 147,334.32, 220,811.92 and 128,281.00 is: 192,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,334.32 : 220,811.92 = 128,281.00 : x
  2. Step 2: Convert to fraction form
    147,334.32/220,811.92 = 128,281.00/x
  3. Step 3: Cross multiply
    147,334.32x = 220,811.92 × 128,281.00
  4. Step 4: Simplify right side
    147,334.32x = 28,325,972,805.46
  5. Step 5: Solve for x
    x = 28,325,972,805.46/147,334.32
  6. Step 6: Final answer
    x = 192,256.45

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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.