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Finding the Fourth Proportional to 111,453.69, 153,803.07 and 67,829.85

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Solution

The fourth proportional to 111,453.69, 153,803.07 and 67,829.85 is: 93,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,453.69 : 153,803.07 = 67,829.85 : x
  2. Step 2: Convert to fraction form
    111,453.69/153,803.07 = 67,829.85/x
  3. Step 3: Cross multiply
    111,453.69x = 153,803.07 × 67,829.85
  4. Step 4: Simplify right side
    111,453.69x = 10,432,439,167.64
  5. Step 5: Solve for x
    x = 10,432,439,167.64/111,453.69
  6. Step 6: Final answer
    x = 93,603.35

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1.5x scale

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.