Home / 156,965.60-235,448.40-139,858.40

Finding the Fourth Proportional to 156,965.60, 235,448.40 and 139,858.40

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Solution

The fourth proportional to 156,965.60, 235,448.40 and 139,858.40 is: 209,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.60 : 235,448.40 = 139,858.40 : x
  2. Step 2: Convert to fraction form
    156,965.60/235,448.40 = 139,858.40/x
  3. Step 3: Cross multiply
    156,965.60x = 235,448.40 × 139,858.40
  4. Step 4: Simplify right side
    156,965.60x = 32,929,436,506.56
  5. Step 5: Solve for x
    x = 32,929,436,506.56/156,965.60
  6. Step 6: Final answer
    x = 209,787.60

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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.