Home / 130,187.72-195,280.14-31,691.72

Finding the Fourth Proportional to 130,187.72, 195,280.14 and 31,691.72

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Solution

The fourth proportional to 130,187.72, 195,280.14 and 31,691.72 is: 47,537.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,187.72 : 195,280.14 = 31,691.72 : x
  2. Step 2: Convert to fraction form
    130,187.72/195,280.14 = 31,691.72/x
  3. Step 3: Cross multiply
    130,187.72x = 195,280.14 × 31,691.72
  4. Step 4: Simplify right side
    130,187.72x = 6,188,763,518.44
  5. Step 5: Solve for x
    x = 6,188,763,518.44/130,187.72
  6. Step 6: Final answer
    x = 47,537.23

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1.5x scale

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.