Home / 145,865.97-218,885.04-61,620.66

Finding the Fourth Proportional to 145,865.97, 218,885.04 and 61,620.66

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Solution

The fourth proportional to 145,865.97, 218,885.04 and 61,620.66 is: 92,467.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.97 : 218,885.04 = 61,620.66 : x
  2. Step 2: Convert to fraction form
    145,865.97/218,885.04 = 61,620.66/x
  3. Step 3: Cross multiply
    145,865.97x = 218,885.04 × 61,620.66
  4. Step 4: Simplify right side
    145,865.97x = 13,487,840,628.93
  5. Step 5: Solve for x
    x = 13,487,840,628.93/145,865.97
  6. Step 6: Final answer
    x = 92,467.36

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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.