Home / 154,106.42-231,178.05-65,348.39

Finding the Fourth Proportional to 154,106.42, 231,178.05 and 65,348.39

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Solution

The fourth proportional to 154,106.42, 231,178.05 and 65,348.39 is: 98,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,106.42 : 231,178.05 = 65,348.39 : x
  2. Step 2: Convert to fraction form
    154,106.42/231,178.05 = 65,348.39/x
  3. Step 3: Cross multiply
    154,106.42x = 231,178.05 × 65,348.39
  4. Step 4: Simplify right side
    154,106.42x = 15,107,113,370.84
  5. Step 5: Solve for x
    x = 15,107,113,370.84/154,106.42
  6. Step 6: Final answer
    x = 98,030.40

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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.