Home / 147,809.20-221,746.60-42,620

Finding the Fourth Proportional to 147,809.20, 221,746.60 and 42,620

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Solution

The fourth proportional to 147,809.20, 221,746.60 and 42,620 is: 63,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,809.20 : 221,746.60 = 42,620 : x
  2. Step 2: Convert to fraction form
    147,809.20/221,746.60 = 42,620/x
  3. Step 3: Cross multiply
    147,809.20x = 221,746.60 × 42,620
  4. Step 4: Simplify right side
    147,809.20x = 9,450,840,092
  5. Step 5: Solve for x
    x = 9,450,840,092/147,809.20
  6. Step 6: Final answer
    x = 63,939.46

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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.