Home / 102,913.40-154,370.10-40,575.80

Finding the Fourth Proportional to 102,913.40, 154,370.10 and 40,575.80

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Solution

The fourth proportional to 102,913.40, 154,370.10 and 40,575.80 is: 60,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,913.40 : 154,370.10 = 40,575.80 : x
  2. Step 2: Convert to fraction form
    102,913.40/154,370.10 = 40,575.80/x
  3. Step 3: Cross multiply
    102,913.40x = 154,370.10 × 40,575.80
  4. Step 4: Simplify right side
    102,913.40x = 6,263,690,303.58
  5. Step 5: Solve for x
    x = 6,263,690,303.58/102,913.40
  6. Step 6: Final answer
    x = 60,863.70

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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.