Home / 156,729.40-235,247.70-77,932.60

Finding the Fourth Proportional to 156,729.40, 235,247.70 and 77,932.60

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Solution

The fourth proportional to 156,729.40, 235,247.70 and 77,932.60 is: 116,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,729.40 : 235,247.70 = 77,932.60 : x
  2. Step 2: Convert to fraction form
    156,729.40/235,247.70 = 77,932.60/x
  3. Step 3: Cross multiply
    156,729.40x = 235,247.70 × 77,932.60
  4. Step 4: Simplify right side
    156,729.40x = 18,333,464,905.02
  5. Step 5: Solve for x
    x = 18,333,464,905.02/156,729.40
  6. Step 6: Final answer
    x = 116,975.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.