Home / 145,724.90-218,616.81-61,485.28

Finding the Fourth Proportional to 145,724.90, 218,616.81 and 61,485.28

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Solution

The fourth proportional to 145,724.90, 218,616.81 and 61,485.28 is: 92,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,724.90 : 218,616.81 = 61,485.28 : x
  2. Step 2: Convert to fraction form
    145,724.90/218,616.81 = 61,485.28/x
  3. Step 3: Cross multiply
    145,724.90x = 218,616.81 × 61,485.28
  4. Step 4: Simplify right side
    145,724.90x = 13,441,715,775.56
  5. Step 5: Solve for x
    x = 13,441,715,775.56/145,724.90
  6. Step 6: Final answer
    x = 92,240.35

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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.