Home / 112,989.09-169,417.19-42,873.33

Finding the Fourth Proportional to 112,989.09, 169,417.19 and 42,873.33

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Solution

The fourth proportional to 112,989.09, 169,417.19 and 42,873.33 is: 64,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,989.09 : 169,417.19 = 42,873.33 : x
  2. Step 2: Convert to fraction form
    112,989.09/169,417.19 = 42,873.33/x
  3. Step 3: Cross multiply
    112,989.09x = 169,417.19 × 42,873.33
  4. Step 4: Simplify right side
    112,989.09x = 7,263,478,880.18
  5. Step 5: Solve for x
    x = 7,263,478,880.18/112,989.09
  6. Step 6: Final answer
    x = 64,284.78

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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.