Home / 156,928.48-216,562.32-85,309.12

Finding the Fourth Proportional to 156,928.48, 216,562.32 and 85,309.12

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Solution

The fourth proportional to 156,928.48, 216,562.32 and 85,309.12 is: 117,727.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,928.48 : 216,562.32 = 85,309.12 : x
  2. Step 2: Convert to fraction form
    156,928.48/216,562.32 = 85,309.12/x
  3. Step 3: Cross multiply
    156,928.48x = 216,562.32 × 85,309.12
  4. Step 4: Simplify right side
    156,928.48x = 18,474,740,944.36
  5. Step 5: Solve for x
    x = 18,474,740,944.36/156,928.48
  6. Step 6: Final answer
    x = 117,727.14

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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.