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Finding the Fourth Proportional to 122,228.69, 168,675.93 and 67,784.69

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Solution

The fourth proportional to 122,228.69, 168,675.93 and 67,784.69 is: 93,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,228.69 : 168,675.93 = 67,784.69 : x
  2. Step 2: Convert to fraction form
    122,228.69/168,675.93 = 67,784.69/x
  3. Step 3: Cross multiply
    122,228.69x = 168,675.93 × 67,784.69
  4. Step 4: Simplify right side
    122,228.69x = 11,433,644,782.13
  5. Step 5: Solve for x
    x = 11,433,644,782.13/122,228.69
  6. Step 6: Final answer
    x = 93,543.06

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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.