Home / 111,988.37-167,881.71-40,861.36

Finding the Fourth Proportional to 111,988.37, 167,881.71 and 40,861.36

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Solution

The fourth proportional to 111,988.37, 167,881.71 and 40,861.36 is: 61,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,988.37 : 167,881.71 = 40,861.36 : x
  2. Step 2: Convert to fraction form
    111,988.37/167,881.71 = 40,861.36/x
  3. Step 3: Cross multiply
    111,988.37x = 167,881.71 × 40,861.36
  4. Step 4: Simplify right side
    111,988.37x = 6,859,875,352.81
  5. Step 5: Solve for x
    x = 6,859,875,352.81/111,988.37
  6. Step 6: Final answer
    x = 61,255.25

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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.