Home / 153,908.87-230,438.16-78,867.41

Finding the Fourth Proportional to 153,908.87, 230,438.16 and 78,867.41

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Solution

The fourth proportional to 153,908.87, 230,438.16 and 78,867.41 is: 118,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,908.87 : 230,438.16 = 78,867.41 : x
  2. Step 2: Convert to fraction form
    153,908.87/230,438.16 = 78,867.41/x
  3. Step 3: Cross multiply
    153,908.87x = 230,438.16 × 78,867.41
  4. Step 4: Simplify right side
    153,908.87x = 18,174,059,692.17
  5. Step 5: Solve for x
    x = 18,174,059,692.17/153,908.87
  6. Step 6: Final answer
    x = 118,083.25

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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.