Home / 112,822.40-169,233.60-103,145.60

Finding the Fourth Proportional to 112,822.40, 169,233.60 and 103,145.60

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Solution

The fourth proportional to 112,822.40, 169,233.60 and 103,145.60 is: 154,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,822.40 : 169,233.60 = 103,145.60 : x
  2. Step 2: Convert to fraction form
    112,822.40/169,233.60 = 103,145.60/x
  3. Step 3: Cross multiply
    112,822.40x = 169,233.60 × 103,145.60
  4. Step 4: Simplify right side
    112,822.40x = 17,455,701,212.16
  5. Step 5: Solve for x
    x = 17,455,701,212.16/112,822.40
  6. Step 6: Final answer
    x = 154,718.40

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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.