Home / 156,672.40-235,162.20-77,875.60

Finding the Fourth Proportional to 156,672.40, 235,162.20 and 77,875.60

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Solution

The fourth proportional to 156,672.40, 235,162.20 and 77,875.60 is: 116,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,672.40 : 235,162.20 = 77,875.60 : x
  2. Step 2: Convert to fraction form
    156,672.40/235,162.20 = 77,875.60/x
  3. Step 3: Cross multiply
    156,672.40x = 235,162.20 × 77,875.60
  4. Step 4: Simplify right side
    156,672.40x = 18,313,397,422.32
  5. Step 5: Solve for x
    x = 18,313,397,422.32/156,672.40
  6. Step 6: Final answer
    x = 116,889.75

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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.