Home / 111,231.10-153,375.92-70,880.95

Finding the Fourth Proportional to 111,231.10, 153,375.92 and 70,880.95

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Solution

The fourth proportional to 111,231.10, 153,375.92 and 70,880.95 is: 97,737.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,231.10 : 153,375.92 = 70,880.95 : x
  2. Step 2: Convert to fraction form
    111,231.10/153,375.92 = 70,880.95/x
  3. Step 3: Cross multiply
    111,231.10x = 153,375.92 × 70,880.95
  4. Step 4: Simplify right side
    111,231.10x = 10,871,430,916.72
  5. Step 5: Solve for x
    x = 10,871,430,916.72/111,231.10
  6. Step 6: Final answer
    x = 97,737.33

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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.