Home / 147,639.76-221,494.80-47,800

Finding the Fourth Proportional to 147,639.76, 221,494.80 and 47,800

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Solution

The fourth proportional to 147,639.76, 221,494.80 and 47,800 is: 71,711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,639.76 : 221,494.80 = 47,800 : x
  2. Step 2: Convert to fraction form
    147,639.76/221,494.80 = 47,800/x
  3. Step 3: Cross multiply
    147,639.76x = 221,494.80 × 47,800
  4. Step 4: Simplify right side
    147,639.76x = 10,587,451,440
  5. Step 5: Solve for x
    x = 10,587,451,440/147,639.76
  6. Step 6: Final answer
    x = 71,711.38

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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.