Home / 147,640.32-221,495.76-47,800.62

Finding the Fourth Proportional to 147,640.32, 221,495.76 and 47,800.62

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Solution

The fourth proportional to 147,640.32, 221,495.76 and 47,800.62 is: 71,712.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,640.32 : 221,495.76 = 47,800.62 : x
  2. Step 2: Convert to fraction form
    147,640.32/221,495.76 = 47,800.62/x
  3. Step 3: Cross multiply
    147,640.32x = 221,495.76 × 47,800.62
  4. Step 4: Simplify right side
    147,640.32x = 10,587,634,416.37
  5. Step 5: Solve for x
    x = 10,587,634,416.37/147,640.32
  6. Step 6: Final answer
    x = 71,712.35

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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.