Home / 146,428.40-219,885.52-91,374.32

Finding the Fourth Proportional to 146,428.40, 219,885.52 and 91,374.32

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Solution

The fourth proportional to 146,428.40, 219,885.52 and 91,374.32 is: 137,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,428.40 : 219,885.52 = 91,374.32 : x
  2. Step 2: Convert to fraction form
    146,428.40/219,885.52 = 91,374.32/x
  3. Step 3: Cross multiply
    146,428.40x = 219,885.52 × 91,374.32
  4. Step 4: Simplify right side
    146,428.40x = 20,091,889,867.85
  5. Step 5: Solve for x
    x = 20,091,889,867.85/146,428.40
  6. Step 6: Final answer
    x = 137,213.07

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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.