Home / 86,873.04-130,173.48-69,338.16

Finding the Fourth Proportional to 86,873.04, 130,173.48 and 69,338.16

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Solution

The fourth proportional to 86,873.04, 130,173.48 and 69,338.16 is: 103,898.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,873.04 : 130,173.48 = 69,338.16 : x
  2. Step 2: Convert to fraction form
    86,873.04/130,173.48 = 69,338.16/x
  3. Step 3: Cross multiply
    86,873.04x = 130,173.48 × 69,338.16
  4. Step 4: Simplify right side
    86,873.04x = 9,025,989,584.00
  5. Step 5: Solve for x
    x = 9,025,989,584.00/86,873.04
  6. Step 6: Final answer
    x = 103,898.63

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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.