Home / 158,823.45-219,030.09-107,912.40

Finding the Fourth Proportional to 158,823.45, 219,030.09 and 107,912.40

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Solution

The fourth proportional to 158,823.45, 219,030.09 and 107,912.40 is: 148,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,823.45 : 219,030.09 = 107,912.40 : x
  2. Step 2: Convert to fraction form
    158,823.45/219,030.09 = 107,912.40/x
  3. Step 3: Cross multiply
    158,823.45x = 219,030.09 × 107,912.40
  4. Step 4: Simplify right side
    158,823.45x = 23,636,062,684.12
  5. Step 5: Solve for x
    x = 23,636,062,684.12/158,823.45
  6. Step 6: Final answer
    x = 148,819.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.