Home / 109,510.62-151,126.83-61,754.64

Finding the Fourth Proportional to 109,510.62, 151,126.83 and 61,754.64

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Solution

The fourth proportional to 109,510.62, 151,126.83 and 61,754.64 is: 85,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,510.62 : 151,126.83 = 61,754.64 : x
  2. Step 2: Convert to fraction form
    109,510.62/151,126.83 = 61,754.64/x
  3. Step 3: Cross multiply
    109,510.62x = 151,126.83 × 61,754.64
  4. Step 4: Simplify right side
    109,510.62x = 9,332,782,980.99
  5. Step 5: Solve for x
    x = 9,332,782,980.99/109,510.62
  6. Step 6: Final answer
    x = 85,222.63

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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.