Home / 86,912.04-130,145.11-60,220.11

Finding the Fourth Proportional to 86,912.04, 130,145.11 and 60,220.11

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Solution

The fourth proportional to 86,912.04, 130,145.11 and 60,220.11 is: 90,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,912.04 : 130,145.11 = 60,220.11 : x
  2. Step 2: Convert to fraction form
    86,912.04/130,145.11 = 60,220.11/x
  3. Step 3: Cross multiply
    86,912.04x = 130,145.11 × 60,220.11
  4. Step 4: Simplify right side
    86,912.04x = 7,837,352,840.16
  5. Step 5: Solve for x
    x = 7,837,352,840.16/86,912.04
  6. Step 6: Final answer
    x = 90,175.69

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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.