Home / 131,236.81-196,886.57-42,490.41

Finding the Fourth Proportional to 131,236.81, 196,886.57 and 42,490.41

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Solution

The fourth proportional to 131,236.81, 196,886.57 and 42,490.41 is: 63,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,236.81 : 196,886.57 = 42,490.41 : x
  2. Step 2: Convert to fraction form
    131,236.81/196,886.57 = 42,490.41/x
  3. Step 3: Cross multiply
    131,236.81x = 196,886.57 × 42,490.41
  4. Step 4: Simplify right side
    131,236.81x = 8,365,791,082.79
  5. Step 5: Solve for x
    x = 8,365,791,082.79/131,236.81
  6. Step 6: Final answer
    x = 63,745.77

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1.5x scale

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.