Home / 147,861.20-221,878.20-54,376.40

Finding the Fourth Proportional to 147,861.20, 221,878.20 and 54,376.40

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Solution

The fourth proportional to 147,861.20, 221,878.20 and 54,376.40 is: 81,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,861.20 : 221,878.20 = 54,376.40 : x
  2. Step 2: Convert to fraction form
    147,861.20/221,878.20 = 54,376.40/x
  3. Step 3: Cross multiply
    147,861.20x = 221,878.20 × 54,376.40
  4. Step 4: Simplify right side
    147,861.20x = 12,064,937,754.48
  5. Step 5: Solve for x
    x = 12,064,937,754.48/147,861.20
  6. Step 6: Final answer
    x = 81,596.37

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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.