Home / 286,617.46-429,927.18-86,939.56

Finding the Fourth Proportional to 286,617.46, 429,927.18 and 86,939.56

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Solution

The fourth proportional to 286,617.46, 429,927.18 and 86,939.56 is: 130,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,617.46 : 429,927.18 = 86,939.56 : x
  2. Step 2: Convert to fraction form
    286,617.46/429,927.18 = 86,939.56/x
  3. Step 3: Cross multiply
    286,617.46x = 429,927.18 × 86,939.56
  4. Step 4: Simplify right side
    286,617.46x = 37,377,679,861.24
  5. Step 5: Solve for x
    x = 37,377,679,861.24/286,617.46
  6. Step 6: Final answer
    x = 130,409.64

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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.