Home / 156,976.90-235,465.35-38,647.30

Finding the Fourth Proportional to 156,976.90, 235,465.35 and 38,647.30

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Solution

The fourth proportional to 156,976.90, 235,465.35 and 38,647.30 is: 57,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976.90 : 235,465.35 = 38,647.30 : x
  2. Step 2: Convert to fraction form
    156,976.90/235,465.35 = 38,647.30/x
  3. Step 3: Cross multiply
    156,976.90x = 235,465.35 × 38,647.30
  4. Step 4: Simplify right side
    156,976.90x = 9,100,100,021.06
  5. Step 5: Solve for x
    x = 9,100,100,021.06/156,976.90
  6. Step 6: Final answer
    x = 57,970.95

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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.