Home / 140,378.16-193,722.36-76,715.94

Finding the Fourth Proportional to 140,378.16, 193,722.36 and 76,715.94

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Solution

The fourth proportional to 140,378.16, 193,722.36 and 76,715.94 is: 105,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,378.16 : 193,722.36 = 76,715.94 : x
  2. Step 2: Convert to fraction form
    140,378.16/193,722.36 = 76,715.94/x
  3. Step 3: Cross multiply
    140,378.16x = 193,722.36 × 76,715.94
  4. Step 4: Simplify right side
    140,378.16x = 14,861,592,946.42
  5. Step 5: Solve for x
    x = 14,861,592,946.42/140,378.16
  6. Step 6: Final answer
    x = 105,868.27

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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.