Home / 121,715.46-182,325.33-99,306

Finding the Fourth Proportional to 121,715.46, 182,325.33 and 99,306

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Solution

The fourth proportional to 121,715.46, 182,325.33 and 99,306 is: 148,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,715.46 : 182,325.33 = 99,306 : x
  2. Step 2: Convert to fraction form
    121,715.46/182,325.33 = 99,306/x
  3. Step 3: Cross multiply
    121,715.46x = 182,325.33 × 99,306
  4. Step 4: Simplify right side
    121,715.46x = 18,105,999,220.98
  5. Step 5: Solve for x
    x = 18,105,999,220.98/121,715.46
  6. Step 6: Final answer
    x = 148,756.77

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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.