Home / 156,787.60-235,181.40-112,828.90

Finding the Fourth Proportional to 156,787.60, 235,181.40 and 112,828.90

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Solution

The fourth proportional to 156,787.60, 235,181.40 and 112,828.90 is: 169,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,787.60 : 235,181.40 = 112,828.90 : x
  2. Step 2: Convert to fraction form
    156,787.60/235,181.40 = 112,828.90/x
  3. Step 3: Cross multiply
    156,787.60x = 235,181.40 × 112,828.90
  4. Step 4: Simplify right side
    156,787.60x = 26,535,258,662.46
  5. Step 5: Solve for x
    x = 26,535,258,662.46/156,787.60
  6. Step 6: Final answer
    x = 169,243.35

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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.