Home / 163,081.15-225,054.35-122,172.81

Finding the Fourth Proportional to 163,081.15, 225,054.35 and 122,172.81

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Solution

The fourth proportional to 163,081.15, 225,054.35 and 122,172.81 is: 168,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,081.15 : 225,054.35 = 122,172.81 : x
  2. Step 2: Convert to fraction form
    163,081.15/225,054.35 = 122,172.81/x
  3. Step 3: Cross multiply
    163,081.15x = 225,054.35 × 122,172.81
  4. Step 4: Simplify right side
    163,081.15x = 27,495,521,345.55
  5. Step 5: Solve for x
    x = 27,495,521,345.55/163,081.15
  6. Step 6: Final answer
    x = 168,600.24

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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.