Home / 140,898.42-194,442.19-76,369.70

Finding the Fourth Proportional to 140,898.42, 194,442.19 and 76,369.70

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Solution

The fourth proportional to 140,898.42, 194,442.19 and 76,369.70 is: 105,391.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,898.42 : 194,442.19 = 76,369.70 : x
  2. Step 2: Convert to fraction form
    140,898.42/194,442.19 = 76,369.70/x
  3. Step 3: Cross multiply
    140,898.42x = 194,442.19 × 76,369.70
  4. Step 4: Simplify right side
    140,898.42x = 14,849,492,012.82
  5. Step 5: Solve for x
    x = 14,849,492,012.82/140,898.42
  6. Step 6: Final answer
    x = 105,391.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.