Home / 194,123.42-291,127.67-87,445.71

Finding the Fourth Proportional to 194,123.42, 291,127.67 and 87,445.71

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Solution

The fourth proportional to 194,123.42, 291,127.67 and 87,445.71 is: 131,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,123.42 : 291,127.67 = 87,445.71 : x
  2. Step 2: Convert to fraction form
    194,123.42/291,127.67 = 87,445.71/x
  3. Step 3: Cross multiply
    194,123.42x = 291,127.67 × 87,445.71
  4. Step 4: Simplify right side
    194,123.42x = 25,457,865,694.49
  5. Step 5: Solve for x
    x = 25,457,865,694.49/194,123.42
  6. Step 6: Final answer
    x = 131,142.68

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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.