Home / 156,968.24-216,615.13-85,348.31

Finding the Fourth Proportional to 156,968.24, 216,615.13 and 85,348.31

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Solution

The fourth proportional to 156,968.24, 216,615.13 and 85,348.31 is: 117,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.24 : 216,615.13 = 85,348.31 : x
  2. Step 2: Convert to fraction form
    156,968.24/216,615.13 = 85,348.31/x
  3. Step 3: Cross multiply
    156,968.24x = 216,615.13 × 85,348.31
  4. Step 4: Simplify right side
    156,968.24x = 18,487,733,969.48
  5. Step 5: Solve for x
    x = 18,487,733,969.48/156,968.24
  6. Step 6: Final answer
    x = 117,780.10

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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.