Home / 147,643.28-221,468.34-52,879.94

Finding the Fourth Proportional to 147,643.28, 221,468.34 and 52,879.94

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Solution

The fourth proportional to 147,643.28, 221,468.34 and 52,879.94 is: 79,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,643.28 : 221,468.34 = 52,879.94 : x
  2. Step 2: Convert to fraction form
    147,643.28/221,468.34 = 52,879.94/x
  3. Step 3: Cross multiply
    147,643.28x = 221,468.34 × 52,879.94
  4. Step 4: Simplify right side
    147,643.28x = 11,711,232,531.10
  5. Step 5: Solve for x
    x = 11,711,232,531.10/147,643.28
  6. Step 6: Final answer
    x = 79,321.13

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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.