Home / 86,914.50-130,151.22-72,837.51

Finding the Fourth Proportional to 86,914.50, 130,151.22 and 72,837.51

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Solution

The fourth proportional to 86,914.50, 130,151.22 and 72,837.51 is: 109,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,914.50 : 130,151.22 = 72,837.51 : x
  2. Step 2: Convert to fraction form
    86,914.50/130,151.22 = 72,837.51/x
  3. Step 3: Cross multiply
    86,914.50x = 130,151.22 × 72,837.51
  4. Step 4: Simplify right side
    86,914.50x = 9,479,890,788.26
  5. Step 5: Solve for x
    x = 9,479,890,788.26/86,914.50
  6. Step 6: Final answer
    x = 109,071.45

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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.