Home / 189,921.93-262,120.69-118,325.01

Finding the Fourth Proportional to 189,921.93, 262,120.69 and 118,325.01

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Solution

The fourth proportional to 189,921.93, 262,120.69 and 118,325.01 is: 163,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,921.93 : 262,120.69 = 118,325.01 : x
  2. Step 2: Convert to fraction form
    189,921.93/262,120.69 = 118,325.01/x
  3. Step 3: Cross multiply
    189,921.93x = 262,120.69 × 118,325.01
  4. Step 4: Simplify right side
    189,921.93x = 31,015,433,265.46
  5. Step 5: Solve for x
    x = 31,015,433,265.46/189,921.93
  6. Step 6: Final answer
    x = 163,306.22

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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.