Home / 109,629.16-151,288.18-61,882.92

Finding the Fourth Proportional to 109,629.16, 151,288.18 and 61,882.92

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Solution

The fourth proportional to 109,629.16, 151,288.18 and 61,882.92 is: 85,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,629.16 : 151,288.18 = 61,882.92 : x
  2. Step 2: Convert to fraction form
    109,629.16/151,288.18 = 61,882.92/x
  3. Step 3: Cross multiply
    109,629.16x = 151,288.18 × 61,882.92
  4. Step 4: Simplify right side
    109,629.16x = 9,362,154,339.89
  5. Step 5: Solve for x
    x = 9,362,154,339.89/109,629.16
  6. Step 6: Final answer
    x = 85,398.40

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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.