Home / 121,715.76-182,583.27-42,847.68

Finding the Fourth Proportional to 121,715.76, 182,583.27 and 42,847.68

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Solution

The fourth proportional to 121,715.76, 182,583.27 and 42,847.68 is: 64,274.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,715.76 : 182,583.27 = 42,847.68 : x
  2. Step 2: Convert to fraction form
    121,715.76/182,583.27 = 42,847.68/x
  3. Step 3: Cross multiply
    121,715.76x = 182,583.27 × 42,847.68
  4. Step 4: Simplify right side
    121,715.76x = 7,823,269,526.31
  5. Step 5: Solve for x
    x = 7,823,269,526.31/121,715.76
  6. Step 6: Final answer
    x = 64,274.91

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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.