Home / 131,377.28-197,065.78-42,630.77

Finding the Fourth Proportional to 131,377.28, 197,065.78 and 42,630.77

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Solution

The fourth proportional to 131,377.28, 197,065.78 and 42,630.77 is: 63,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,377.28 : 197,065.78 = 42,630.77 : x
  2. Step 2: Convert to fraction form
    131,377.28/197,065.78 = 42,630.77/x
  3. Step 3: Cross multiply
    131,377.28x = 197,065.78 × 42,630.77
  4. Step 4: Simplify right side
    131,377.28x = 8,401,066,328.14
  5. Step 5: Solve for x
    x = 8,401,066,328.14/131,377.28
  6. Step 6: Final answer
    x = 63,946.11

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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.