Home / 156,980.07-216,631.40-85,360.14

Finding the Fourth Proportional to 156,980.07, 216,631.40 and 85,360.14

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Solution

The fourth proportional to 156,980.07, 216,631.40 and 85,360.14 is: 117,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.07 : 216,631.40 = 85,360.14 : x
  2. Step 2: Convert to fraction form
    156,980.07/216,631.40 = 85,360.14/x
  3. Step 3: Cross multiply
    156,980.07x = 216,631.40 × 85,360.14
  4. Step 4: Simplify right side
    156,980.07x = 18,491,686,205.60
  5. Step 5: Solve for x
    x = 18,491,686,205.60/156,980.07
  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.