Home / 147,579.20-221,368.80-47,808.80

Finding the Fourth Proportional to 147,579.20, 221,368.80 and 47,808.80

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Solution

The fourth proportional to 147,579.20, 221,368.80 and 47,808.80 is: 71,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,579.20 : 221,368.80 = 47,808.80 : x
  2. Step 2: Convert to fraction form
    147,579.20/221,368.80 = 47,808.80/x
  3. Step 3: Cross multiply
    147,579.20x = 221,368.80 × 47,808.80
  4. Step 4: Simplify right side
    147,579.20x = 10,583,376,685.44
  5. Step 5: Solve for x
    x = 10,583,376,685.44/147,579.20
  6. Step 6: Final answer
    x = 71,713.20

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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.