Home / 111,706-154,154.28-63,975.16

Finding the Fourth Proportional to 111,706, 154,154.28 and 63,975.16

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Solution

The fourth proportional to 111,706, 154,154.28 and 63,975.16 is: 88,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,706 : 154,154.28 = 63,975.16 : x
  2. Step 2: Convert to fraction form
    111,706/154,154.28 = 63,975.16/x
  3. Step 3: Cross multiply
    111,706x = 154,154.28 × 63,975.16
  4. Step 4: Simplify right side
    111,706x = 9,862,044,727.68
  5. Step 5: Solve for x
    x = 9,862,044,727.68/111,706
  6. Step 6: Final answer
    x = 88,285.72

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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.