Home / 156,974.83-235,460.32-38,647.20

Finding the Fourth Proportional to 156,974.83, 235,460.32 and 38,647.20

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Solution

The fourth proportional to 156,974.83, 235,460.32 and 38,647.20 is: 57,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.83 : 235,460.32 = 38,647.20 : x
  2. Step 2: Convert to fraction form
    156,974.83/235,460.32 = 38,647.20/x
  3. Step 3: Cross multiply
    156,974.83x = 235,460.32 × 38,647.20
  4. Step 4: Simplify right side
    156,974.83x = 9,099,882,079.10
  5. Step 5: Solve for x
    x = 9,099,882,079.10/156,974.83
  6. Step 6: Final answer
    x = 57,970.33

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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.