Home / 154,210.12-231,315.42-43,402.12

Finding the Fourth Proportional to 154,210.12, 231,315.42 and 43,402.12

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Solution

The fourth proportional to 154,210.12, 231,315.42 and 43,402.12 is: 65,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,210.12 : 231,315.42 = 43,402.12 : x
  2. Step 2: Convert to fraction form
    154,210.12/231,315.42 = 43,402.12/x
  3. Step 3: Cross multiply
    154,210.12x = 231,315.42 × 43,402.12
  4. Step 4: Simplify right side
    154,210.12x = 10,039,579,616.69
  5. Step 5: Solve for x
    x = 10,039,579,616.69/154,210.12
  6. Step 6: Final answer
    x = 65,103.25

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1.5x scale

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.