Home / 147,826.40-221,813.88-68,946.80

Finding the Fourth Proportional to 147,826.40, 221,813.88 and 68,946.80

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Solution

The fourth proportional to 147,826.40, 221,813.88 and 68,946.80 is: 103,454.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,826.40 : 221,813.88 = 68,946.80 : x
  2. Step 2: Convert to fraction form
    147,826.40/221,813.88 = 68,946.80/x
  3. Step 3: Cross multiply
    147,826.40x = 221,813.88 × 68,946.80
  4. Step 4: Simplify right side
    147,826.40x = 15,293,357,221.58
  5. Step 5: Solve for x
    x = 15,293,357,221.58/147,826.40
  6. Step 6: Final answer
    x = 103,454.84

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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.