Home / 86,914.25-130,150.85-72,837.26

Finding the Fourth Proportional to 86,914.25, 130,150.85 and 72,837.26

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Solution

The fourth proportional to 86,914.25, 130,150.85 and 72,837.26 is: 109,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,914.25 : 130,150.85 = 72,837.26 : x
  2. Step 2: Convert to fraction form
    86,914.25/130,150.85 = 72,837.26/x
  3. Step 3: Cross multiply
    86,914.25x = 130,150.85 × 72,837.26
  4. Step 4: Simplify right side
    86,914.25x = 9,479,830,285.73
  5. Step 5: Solve for x
    x = 9,479,830,285.73/86,914.25
  6. Step 6: Final answer
    x = 109,071.08

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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.