Home / 131,402.70-197,132.85-42,641.10

Finding the Fourth Proportional to 131,402.70, 197,132.85 and 42,641.10

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Solution

The fourth proportional to 131,402.70, 197,132.85 and 42,641.10 is: 63,971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,402.70 : 197,132.85 = 42,641.10 : x
  2. Step 2: Convert to fraction form
    131,402.70/197,132.85 = 42,641.10/x
  3. Step 3: Cross multiply
    131,402.70x = 197,132.85 × 42,641.10
  4. Step 4: Simplify right side
    131,402.70x = 8,405,961,570.14
  5. Step 5: Solve for x
    x = 8,405,961,570.14/131,402.70
  6. Step 6: Final answer
    x = 63,971.00

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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.