Home / 156,980.06-216,631.39-85,360.13

Finding the Fourth Proportional to 156,980.06, 216,631.39 and 85,360.13

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Solution

The fourth proportional to 156,980.06, 216,631.39 and 85,360.13 is: 117,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.06 : 216,631.39 = 85,360.13 : x
  2. Step 2: Convert to fraction form
    156,980.06/216,631.39 = 85,360.13/x
  3. Step 3: Cross multiply
    156,980.06x = 216,631.39 × 85,360.13
  4. Step 4: Simplify right side
    156,980.06x = 18,491,683,612.48
  5. Step 5: Solve for x
    x = 18,491,683,612.48/156,980.06
  6. Step 6: Final answer
    x = 117,796.39

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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.