Home / 160,423.20-240,634.80-85,773.60

Finding the Fourth Proportional to 160,423.20, 240,634.80 and 85,773.60

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Solution

The fourth proportional to 160,423.20, 240,634.80 and 85,773.60 is: 128,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,423.20 : 240,634.80 = 85,773.60 : x
  2. Step 2: Convert to fraction form
    160,423.20/240,634.80 = 85,773.60/x
  3. Step 3: Cross multiply
    160,423.20x = 240,634.80 × 85,773.60
  4. Step 4: Simplify right side
    160,423.20x = 20,640,113,081.28
  5. Step 5: Solve for x
    x = 20,640,113,081.28/160,423.20
  6. Step 6: Final answer
    x = 128,660.40

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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.