Home / 131,587.21-197,378.98-31,746.56

Finding the Fourth Proportional to 131,587.21, 197,378.98 and 31,746.56

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Solution

The fourth proportional to 131,587.21, 197,378.98 and 31,746.56 is: 47,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,587.21 : 197,378.98 = 31,746.56 : x
  2. Step 2: Convert to fraction form
    131,587.21/197,378.98 = 31,746.56/x
  3. Step 3: Cross multiply
    131,587.21x = 197,378.98 × 31,746.56
  4. Step 4: Simplify right side
    131,587.21x = 6,266,103,631.31
  5. Step 5: Solve for x
    x = 6,266,103,631.31/131,587.21
  6. Step 6: Final answer
    x = 47,619.40

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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.