Home / 154,138.98-231,212.57-54,276.46

Finding the Fourth Proportional to 154,138.98, 231,212.57 and 54,276.46

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Solution

The fourth proportional to 154,138.98, 231,212.57 and 54,276.46 is: 81,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,138.98 : 231,212.57 = 54,276.46 : x
  2. Step 2: Convert to fraction form
    154,138.98/231,212.57 = 54,276.46/x
  3. Step 3: Cross multiply
    154,138.98x = 231,212.57 × 54,276.46
  4. Step 4: Simplify right side
    154,138.98x = 12,549,399,807.10
  5. Step 5: Solve for x
    x = 12,549,399,807.10/154,138.98
  6. Step 6: Final answer
    x = 81,416.13

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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.