Home / 112,154.36-154,824.85-69,141.54

Finding the Fourth Proportional to 112,154.36, 154,824.85 and 69,141.54

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Solution

The fourth proportional to 112,154.36, 154,824.85 and 69,141.54 is: 95,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,154.36 : 154,824.85 = 69,141.54 : x
  2. Step 2: Convert to fraction form
    112,154.36/154,824.85 = 69,141.54/x
  3. Step 3: Cross multiply
    112,154.36x = 154,824.85 × 69,141.54
  4. Step 4: Simplify right side
    112,154.36x = 10,704,828,386.42
  5. Step 5: Solve for x
    x = 10,704,828,386.42/112,154.36
  6. Step 6: Final answer
    x = 95,447.28

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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.