Home / 147,660.10-221,490.15-68,782.30

Finding the Fourth Proportional to 147,660.10, 221,490.15 and 68,782.30

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Solution

The fourth proportional to 147,660.10, 221,490.15 and 68,782.30 is: 103,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,660.10 : 221,490.15 = 68,782.30 : x
  2. Step 2: Convert to fraction form
    147,660.10/221,490.15 = 68,782.30/x
  3. Step 3: Cross multiply
    147,660.10x = 221,490.15 × 68,782.30
  4. Step 4: Simplify right side
    147,660.10x = 15,234,601,944.35
  5. Step 5: Solve for x
    x = 15,234,601,944.35/147,660.10
  6. Step 6: Final answer
    x = 103,173.45

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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.