Home / 111,871.08-154,368.06-75,651.33

Finding the Fourth Proportional to 111,871.08, 154,368.06 and 75,651.33

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Solution

The fourth proportional to 111,871.08, 154,368.06 and 75,651.33 is: 104,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,871.08 : 154,368.06 = 75,651.33 : x
  2. Step 2: Convert to fraction form
    111,871.08/154,368.06 = 75,651.33/x
  3. Step 3: Cross multiply
    111,871.08x = 154,368.06 × 75,651.33
  4. Step 4: Simplify right side
    111,871.08x = 11,678,149,048.52
  5. Step 5: Solve for x
    x = 11,678,149,048.52/111,871.08
  6. Step 6: Final answer
    x = 104,389.35

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1.5x scale

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.