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Finding the Fourth Proportional to 101,145.44, 151,741.20 and 31,030.40

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Solution

The fourth proportional to 101,145.44, 151,741.20 and 31,030.40 is: 46,552.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,145.44 : 151,741.20 = 31,030.40 : x
  2. Step 2: Convert to fraction form
    101,145.44/151,741.20 = 31,030.40/x
  3. Step 3: Cross multiply
    101,145.44x = 151,741.20 × 31,030.40
  4. Step 4: Simplify right side
    101,145.44x = 4,708,590,132.48
  5. Step 5: Solve for x
    x = 4,708,590,132.48/101,145.44
  6. Step 6: Final answer
    x = 46,552.67

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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.