Home / 156,969.30-216,615.06-85,351.13

Finding the Fourth Proportional to 156,969.30, 216,615.06 and 85,351.13

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Solution

The fourth proportional to 156,969.30, 216,615.06 and 85,351.13 is: 117,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.30 : 216,615.06 = 85,351.13 : x
  2. Step 2: Convert to fraction form
    156,969.30/216,615.06 = 85,351.13/x
  3. Step 3: Cross multiply
    156,969.30x = 216,615.06 × 85,351.13
  4. Step 4: Simplify right side
    156,969.30x = 18,488,340,146.02
  5. Step 5: Solve for x
    x = 18,488,340,146.02/156,969.30
  6. Step 6: Final answer
    x = 117,783.16

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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.