Home / 112,822.40-169,118.40-66,051.20

Finding the Fourth Proportional to 112,822.40, 169,118.40 and 66,051.20

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Solution

The fourth proportional to 112,822.40, 169,118.40 and 66,051.20 is: 99,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,822.40 : 169,118.40 = 66,051.20 : x
  2. Step 2: Convert to fraction form
    112,822.40/169,118.40 = 66,051.20/x
  3. Step 3: Cross multiply
    112,822.40x = 169,118.40 × 66,051.20
  4. Step 4: Simplify right side
    112,822.40x = 11,170,473,262.08
  5. Step 5: Solve for x
    x = 11,170,473,262.08/112,822.40
  6. Step 6: Final answer
    x = 99,009.36

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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.