Home / 156,815.40-235,223.10-38,485.20

Finding the Fourth Proportional to 156,815.40, 235,223.10 and 38,485.20

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Solution

The fourth proportional to 156,815.40, 235,223.10 and 38,485.20 is: 57,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.40 : 235,223.10 = 38,485.20 : x
  2. Step 2: Convert to fraction form
    156,815.40/235,223.10 = 38,485.20/x
  3. Step 3: Cross multiply
    156,815.40x = 235,223.10 × 38,485.20
  4. Step 4: Simplify right side
    156,815.40x = 9,052,608,048.12
  5. Step 5: Solve for x
    x = 9,052,608,048.12/156,815.40
  6. Step 6: Final answer
    x = 57,727.80

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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.