Home / 156,608.24-216,118.20-84,986.40

Finding the Fourth Proportional to 156,608.24, 216,118.20 and 84,986.40

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Solution

The fourth proportional to 156,608.24, 216,118.20 and 84,986.40 is: 117,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,608.24 : 216,118.20 = 84,986.40 : x
  2. Step 2: Convert to fraction form
    156,608.24/216,118.20 = 84,986.40/x
  3. Step 3: Cross multiply
    156,608.24x = 216,118.20 × 84,986.40
  4. Step 4: Simplify right side
    156,608.24x = 18,367,107,792.48
  5. Step 5: Solve for x
    x = 18,367,107,792.48/156,608.24
  6. Step 6: Final answer
    x = 117,280.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.