Home / 104,865.87-144,724.97-64,603.20

Finding the Fourth Proportional to 104,865.87, 144,724.97 and 64,603.20

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Solution

The fourth proportional to 104,865.87, 144,724.97 and 64,603.20 is: 89,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,865.87 : 144,724.97 = 64,603.20 : x
  2. Step 2: Convert to fraction form
    104,865.87/144,724.97 = 64,603.20/x
  3. Step 3: Cross multiply
    104,865.87x = 144,724.97 × 64,603.20
  4. Step 4: Simplify right side
    104,865.87x = 9,349,695,858.89
  5. Step 5: Solve for x
    x = 9,349,695,858.89/104,865.87
  6. Step 6: Final answer
    x = 89,158.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.