Home / 147,820.68-221,735.88-42,640.56

Finding the Fourth Proportional to 147,820.68, 221,735.88 and 42,640.56

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Solution

The fourth proportional to 147,820.68, 221,735.88 and 42,640.56 is: 63,962.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,820.68 : 221,735.88 = 42,640.56 : x
  2. Step 2: Convert to fraction form
    147,820.68/221,735.88 = 42,640.56/x
  3. Step 3: Cross multiply
    147,820.68x = 221,735.88 × 42,640.56
  4. Step 4: Simplify right side
    147,820.68x = 9,454,942,095.29
  5. Step 5: Solve for x
    x = 9,454,942,095.29/147,820.68
  6. Step 6: Final answer
    x = 63,962.24

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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.