Home / 103,214.10-154,821.15-63,815.70

Finding the Fourth Proportional to 103,214.10, 154,821.15 and 63,815.70

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Solution

The fourth proportional to 103,214.10, 154,821.15 and 63,815.70 is: 95,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,214.10 : 154,821.15 = 63,815.70 : x
  2. Step 2: Convert to fraction form
    103,214.10/154,821.15 = 63,815.70/x
  3. Step 3: Cross multiply
    103,214.10x = 154,821.15 × 63,815.70
  4. Step 4: Simplify right side
    103,214.10x = 9,880,020,062.06
  5. Step 5: Solve for x
    x = 9,880,020,062.06/103,214.10
  6. Step 6: Final answer
    x = 95,723.55

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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.