Home / 105,519.25-158,278.88-31,647.25

Finding the Fourth Proportional to 105,519.25, 158,278.88 and 31,647.25

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Solution

The fourth proportional to 105,519.25, 158,278.88 and 31,647.25 is: 47,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,519.25 : 158,278.88 = 31,647.25 : x
  2. Step 2: Convert to fraction form
    105,519.25/158,278.88 = 31,647.25/x
  3. Step 3: Cross multiply
    105,519.25x = 158,278.88 × 31,647.25
  4. Step 4: Simplify right side
    105,519.25x = 5,009,091,285.08
  5. Step 5: Solve for x
    x = 5,009,091,285.08/105,519.25
  6. Step 6: Final answer
    x = 47,470.88

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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.