Home / 147,639.40-221,415.90-52,858.60

Finding the Fourth Proportional to 147,639.40, 221,415.90 and 52,858.60

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Solution

The fourth proportional to 147,639.40, 221,415.90 and 52,858.60 is: 79,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,639.40 : 221,415.90 = 52,858.60 : x
  2. Step 2: Convert to fraction form
    147,639.40/221,415.90 = 52,858.60/x
  3. Step 3: Cross multiply
    147,639.40x = 221,415.90 × 52,858.60
  4. Step 4: Simplify right side
    147,639.40x = 11,703,734,491.74
  5. Step 5: Solve for x
    x = 11,703,734,491.74/147,639.40
  6. Step 6: Final answer
    x = 79,272.43

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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.