Home / 131,644.48-197,478.72-42,875.20

Finding the Fourth Proportional to 131,644.48, 197,478.72 and 42,875.20

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Solution

The fourth proportional to 131,644.48, 197,478.72 and 42,875.20 is: 64,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,644.48 : 197,478.72 = 42,875.20 : x
  2. Step 2: Convert to fraction form
    131,644.48/197,478.72 = 42,875.20/x
  3. Step 3: Cross multiply
    131,644.48x = 197,478.72 × 42,875.20
  4. Step 4: Simplify right side
    131,644.48x = 8,466,939,615.74
  5. Step 5: Solve for x
    x = 8,466,939,615.74/131,644.48
  6. Step 6: Final answer
    x = 64,316.71

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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.