Home / 154,520.87-231,878.81-65,774.23

Finding the Fourth Proportional to 154,520.87, 231,878.81 and 65,774.23

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Solution

The fourth proportional to 154,520.87, 231,878.81 and 65,774.23 is: 98,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,520.87 : 231,878.81 = 65,774.23 : x
  2. Step 2: Convert to fraction form
    154,520.87/231,878.81 = 65,774.23/x
  3. Step 3: Cross multiply
    154,520.87x = 231,878.81 × 65,774.23
  4. Step 4: Simplify right side
    154,520.87x = 15,251,650,181.07
  5. Step 5: Solve for x
    x = 15,251,650,181.07/154,520.87
  6. Step 6: Final answer
    x = 98,702.85

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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.