Home / 147,933.61-221,834.79-91,771.45

Finding the Fourth Proportional to 147,933.61, 221,834.79 and 91,771.45

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Solution

The fourth proportional to 147,933.61, 221,834.79 and 91,771.45 is: 137,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,933.61 : 221,834.79 = 91,771.45 : x
  2. Step 2: Convert to fraction form
    147,933.61/221,834.79 = 91,771.45/x
  3. Step 3: Cross multiply
    147,933.61x = 221,834.79 × 91,771.45
  4. Step 4: Simplify right side
    147,933.61x = 20,358,099,784.16
  5. Step 5: Solve for x
    x = 20,358,099,784.16/147,933.61
  6. Step 6: Final answer
    x = 137,616.46

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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.