Home / 109,631.16-151,290.94-61,884.92

Finding the Fourth Proportional to 109,631.16, 151,290.94 and 61,884.92

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Solution

The fourth proportional to 109,631.16, 151,290.94 and 61,884.92 is: 85,401.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,631.16 : 151,290.94 = 61,884.92 : x
  2. Step 2: Convert to fraction form
    109,631.16/151,290.94 = 61,884.92/x
  3. Step 3: Cross multiply
    109,631.16x = 151,290.94 × 61,884.92
  4. Step 4: Simplify right side
    109,631.16x = 9,362,627,718.62
  5. Step 5: Solve for x
    x = 9,362,627,718.62/109,631.16
  6. Step 6: Final answer
    x = 85,401.16

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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.