Home / 147,947.10-221,811.30-81,462.30

Finding the Fourth Proportional to 147,947.10, 221,811.30 and 81,462.30

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Solution

The fourth proportional to 147,947.10, 221,811.30 and 81,462.30 is: 122,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,947.10 : 221,811.30 = 81,462.30 : x
  2. Step 2: Convert to fraction form
    147,947.10/221,811.30 = 81,462.30/x
  3. Step 3: Cross multiply
    147,947.10x = 221,811.30 × 81,462.30
  4. Step 4: Simplify right side
    147,947.10x = 18,069,258,663.99
  5. Step 5: Solve for x
    x = 18,069,258,663.99/147,947.10
  6. Step 6: Final answer
    x = 122,133.24

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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.