Home / 147,970.70-221,867.31-71,919.45

Finding the Fourth Proportional to 147,970.70, 221,867.31 and 71,919.45

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Solution

The fourth proportional to 147,970.70, 221,867.31 and 71,919.45 is: 107,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,970.70 : 221,867.31 = 71,919.45 : x
  2. Step 2: Convert to fraction form
    147,970.70/221,867.31 = 71,919.45/x
  3. Step 3: Cross multiply
    147,970.70x = 221,867.31 × 71,919.45
  4. Step 4: Simplify right side
    147,970.70x = 15,956,574,908.18
  5. Step 5: Solve for x
    x = 15,956,574,908.18/147,970.70
  6. Step 6: Final answer
    x = 107,836.05

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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.