Home / 112,822.32-169,233.48-57,457.20

Finding the Fourth Proportional to 112,822.32, 169,233.48 and 57,457.20

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Solution

The fourth proportional to 112,822.32, 169,233.48 and 57,457.20 is: 86,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,822.32 : 169,233.48 = 57,457.20 : x
  2. Step 2: Convert to fraction form
    112,822.32/169,233.48 = 57,457.20/x
  3. Step 3: Cross multiply
    112,822.32x = 169,233.48 × 57,457.20
  4. Step 4: Simplify right side
    112,822.32x = 9,723,681,907.06
  5. Step 5: Solve for x
    x = 9,723,681,907.06/112,822.32
  6. Step 6: Final answer
    x = 86,185.80

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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.