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Finding the Fourth Proportional to 163,995, 245,794.86 and 69,188.52

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Solution

The fourth proportional to 163,995, 245,794.86 and 69,188.52 is: 103,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,995 : 245,794.86 = 69,188.52 : x
  2. Step 2: Convert to fraction form
    163,995/245,794.86 = 69,188.52/x
  3. Step 3: Cross multiply
    163,995x = 245,794.86 × 69,188.52
  4. Step 4: Simplify right side
    163,995x = 17,006,182,587.01
  5. Step 5: Solve for x
    x = 17,006,182,587.01/163,995
  6. Step 6: Final answer
    x = 103,699.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.