Home / 156,974.88-216,705.60-121,084.32

Finding the Fourth Proportional to 156,974.88, 216,705.60 and 121,084.32

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Solution

The fourth proportional to 156,974.88, 216,705.60 and 121,084.32 is: 167,158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.88 : 216,705.60 = 121,084.32 : x
  2. Step 2: Convert to fraction form
    156,974.88/216,705.60 = 121,084.32/x
  3. Step 3: Cross multiply
    156,974.88x = 216,705.60 × 121,084.32
  4. Step 4: Simplify right side
    156,974.88x = 26,239,650,216.19
  5. Step 5: Solve for x
    x = 26,239,650,216.19/156,974.88
  6. Step 6: Final answer
    x = 167,158.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.