Home / 147,842.70-221,715.45-54,336.30

Finding the Fourth Proportional to 147,842.70, 221,715.45 and 54,336.30

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Solution

The fourth proportional to 147,842.70, 221,715.45 and 54,336.30 is: 81,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,842.70 : 221,715.45 = 54,336.30 : x
  2. Step 2: Convert to fraction form
    147,842.70/221,715.45 = 54,336.30/x
  3. Step 3: Cross multiply
    147,842.70x = 221,715.45 × 54,336.30
  4. Step 4: Simplify right side
    147,842.70x = 12,047,197,205.84
  5. Step 5: Solve for x
    x = 12,047,197,205.84/147,842.70
  6. Step 6: Final answer
    x = 81,486.59

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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.