Home / 156,639.60-235,032.30-81,844.20

Finding the Fourth Proportional to 156,639.60, 235,032.30 and 81,844.20

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Solution

The fourth proportional to 156,639.60, 235,032.30 and 81,844.20 is: 122,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639.60 : 235,032.30 = 81,844.20 : x
  2. Step 2: Convert to fraction form
    156,639.60/235,032.30 = 81,844.20/x
  3. Step 3: Cross multiply
    156,639.60x = 235,032.30 × 81,844.20
  4. Step 4: Simplify right side
    156,639.60x = 19,236,030,567.66
  5. Step 5: Solve for x
    x = 19,236,030,567.66/156,639.60
  6. Step 6: Final answer
    x = 122,804.39

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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.