Home / 111,940.02-154,476.45-61,639.02

Finding the Fourth Proportional to 111,940.02, 154,476.45 and 61,639.02

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Solution

The fourth proportional to 111,940.02, 154,476.45 and 61,639.02 is: 85,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,940.02 : 154,476.45 = 61,639.02 : x
  2. Step 2: Convert to fraction form
    111,940.02/154,476.45 = 61,639.02/x
  3. Step 3: Cross multiply
    111,940.02x = 154,476.45 × 61,639.02
  4. Step 4: Simplify right side
    111,940.02x = 9,521,776,991.08
  5. Step 5: Solve for x
    x = 9,521,776,991.08/111,940.02
  6. Step 6: Final answer
    x = 85,061.42

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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.