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Finding the Fourth Proportional to 163,994, 245,793.36 and 69,187.52

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Solution

The fourth proportional to 163,994, 245,793.36 and 69,187.52 is: 103,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,994 : 245,793.36 = 69,187.52 : x
  2. Step 2: Convert to fraction form
    163,994/245,793.36 = 69,187.52/x
  3. Step 3: Cross multiply
    163,994x = 245,793.36 × 69,187.52
  4. Step 4: Simplify right side
    163,994x = 17,005,833,010.87
  5. Step 5: Solve for x
    x = 17,005,833,010.87/163,994
  6. Step 6: Final answer
    x = 103,697.90

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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.