Home / 147,271.79-220,901.54-47,429.78

Finding the Fourth Proportional to 147,271.79, 220,901.54 and 47,429.78

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Solution

The fourth proportional to 147,271.79, 220,901.54 and 47,429.78 is: 71,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,271.79 : 220,901.54 = 47,429.78 : x
  2. Step 2: Convert to fraction form
    147,271.79/220,901.54 = 47,429.78/x
  3. Step 3: Cross multiply
    147,271.79x = 220,901.54 × 47,429.78
  4. Step 4: Simplify right side
    147,271.79x = 10,477,310,102.20
  5. Step 5: Solve for x
    x = 10,477,310,102.20/147,271.79
  6. Step 6: Final answer
    x = 71,142.68

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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.