Home / 109,630.84-151,291.02-61,884.76

Finding the Fourth Proportional to 109,630.84, 151,291.02 and 61,884.76

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Solution

The fourth proportional to 109,630.84, 151,291.02 and 61,884.76 is: 85,401.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,630.84 : 151,291.02 = 61,884.76 : x
  2. Step 2: Convert to fraction form
    109,630.84/151,291.02 = 61,884.76/x
  3. Step 3: Cross multiply
    109,630.84x = 151,291.02 × 61,884.76
  4. Step 4: Simplify right side
    109,630.84x = 9,362,608,462.86
  5. Step 5: Solve for x
    x = 9,362,608,462.86/109,630.84
  6. Step 6: Final answer
    x = 85,401.23

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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.