Home / 112,297.08-154,899.18-71,969.16

Finding the Fourth Proportional to 112,297.08, 154,899.18 and 71,969.16

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Solution

The fourth proportional to 112,297.08, 154,899.18 and 71,969.16 is: 99,272.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,297.08 : 154,899.18 = 71,969.16 : x
  2. Step 2: Convert to fraction form
    112,297.08/154,899.18 = 71,969.16/x
  3. Step 3: Cross multiply
    112,297.08x = 154,899.18 × 71,969.16
  4. Step 4: Simplify right side
    112,297.08x = 11,147,963,869.29
  5. Step 5: Solve for x
    x = 11,147,963,869.29/112,297.08
  6. Step 6: Final answer
    x = 99,272.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.