Home / 154,138.74-231,219.45-65,382.18

Finding the Fourth Proportional to 154,138.74, 231,219.45 and 65,382.18

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Solution

The fourth proportional to 154,138.74, 231,219.45 and 65,382.18 is: 98,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,138.74 : 231,219.45 = 65,382.18 : x
  2. Step 2: Convert to fraction form
    154,138.74/231,219.45 = 65,382.18/x
  3. Step 3: Cross multiply
    154,138.74x = 231,219.45 × 65,382.18
  4. Step 4: Simplify right side
    154,138.74x = 15,117,631,699.40
  5. Step 5: Solve for x
    x = 15,117,631,699.40/154,138.74
  6. Step 6: Final answer
    x = 98,078.08

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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.