Home / 97,724.70-146,587.05-86,838.30

Finding the Fourth Proportional to 97,724.70, 146,587.05 and 86,838.30

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Solution

The fourth proportional to 97,724.70, 146,587.05 and 86,838.30 is: 130,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,724.70 : 146,587.05 = 86,838.30 : x
  2. Step 2: Convert to fraction form
    97,724.70/146,587.05 = 86,838.30/x
  3. Step 3: Cross multiply
    97,724.70x = 146,587.05 × 86,838.30
  4. Step 4: Simplify right side
    97,724.70x = 12,729,370,224.02
  5. Step 5: Solve for x
    x = 12,729,370,224.02/97,724.70
  6. Step 6: Final answer
    x = 130,257.45

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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.