Home / 147,334.07-220,811.55-128,280.75

Finding the Fourth Proportional to 147,334.07, 220,811.55 and 128,280.75

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Solution

The fourth proportional to 147,334.07, 220,811.55 and 128,280.75 is: 192,256.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,334.07 : 220,811.55 = 128,280.75 : x
  2. Step 2: Convert to fraction form
    147,334.07/220,811.55 = 128,280.75/x
  3. Step 3: Cross multiply
    147,334.07x = 220,811.55 × 128,280.75
  4. Step 4: Simplify right side
    147,334.07x = 28,325,869,497.20
  5. Step 5: Solve for x
    x = 28,325,869,497.20/147,334.07
  6. Step 6: Final answer
    x = 192,256.07

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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.