Home / 131,486.10-197,002.35-61,221.30

Finding the Fourth Proportional to 131,486.10, 197,002.35 and 61,221.30

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Solution

The fourth proportional to 131,486.10, 197,002.35 and 61,221.30 is: 91,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,486.10 : 197,002.35 = 61,221.30 : x
  2. Step 2: Convert to fraction form
    131,486.10/197,002.35 = 61,221.30/x
  3. Step 3: Cross multiply
    131,486.10x = 197,002.35 × 61,221.30
  4. Step 4: Simplify right side
    131,486.10x = 12,060,739,970.06
  5. Step 5: Solve for x
    x = 12,060,739,970.06/131,486.10
  6. Step 6: Final answer
    x = 91,726.35

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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.