Home / 147,558.80-221,453.40-68,682.80

Finding the Fourth Proportional to 147,558.80, 221,453.40 and 68,682.80

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Solution

The fourth proportional to 147,558.80, 221,453.40 and 68,682.80 is: 103,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,558.80 : 221,453.40 = 68,682.80 : x
  2. Step 2: Convert to fraction form
    147,558.80/221,453.40 = 68,682.80/x
  3. Step 3: Cross multiply
    147,558.80x = 221,453.40 × 68,682.80
  4. Step 4: Simplify right side
    147,558.80x = 15,210,039,581.52
  5. Step 5: Solve for x
    x = 15,210,039,581.52/147,558.80
  6. Step 6: Final answer
    x = 103,077.82

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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.