Home / 101,168.12-151,752.07-30,090.47

Finding the Fourth Proportional to 101,168.12, 151,752.07 and 30,090.47

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Solution

The fourth proportional to 101,168.12, 151,752.07 and 30,090.47 is: 45,135.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,168.12 : 151,752.07 = 30,090.47 : x
  2. Step 2: Convert to fraction form
    101,168.12/151,752.07 = 30,090.47/x
  3. Step 3: Cross multiply
    101,168.12x = 151,752.07 × 30,090.47
  4. Step 4: Simplify right side
    101,168.12x = 4,566,291,109.77
  5. Step 5: Solve for x
    x = 4,566,291,109.77/101,168.12
  6. Step 6: Final answer
    x = 45,135.67

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1.5x scale

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.