Home / 101,850.72-140,525.28-66,042.24

Finding the Fourth Proportional to 101,850.72, 140,525.28 and 66,042.24

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Solution

The fourth proportional to 101,850.72, 140,525.28 and 66,042.24 is: 91,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,850.72 : 140,525.28 = 66,042.24 : x
  2. Step 2: Convert to fraction form
    101,850.72/140,525.28 = 66,042.24/x
  3. Step 3: Cross multiply
    101,850.72x = 140,525.28 × 66,042.24
  4. Step 4: Simplify right side
    101,850.72x = 9,280,604,267.83
  5. Step 5: Solve for x
    x = 9,280,604,267.83/101,850.72
  6. Step 6: Final answer
    x = 91,119.67

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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.