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Finding the Fourth Proportional to 101,165.86, 151,720.09 and 30,085.63

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Solution

The fourth proportional to 101,165.86, 151,720.09 and 30,085.63 is: 45,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,165.86 : 151,720.09 = 30,085.63 : x
  2. Step 2: Convert to fraction form
    101,165.86/151,720.09 = 30,085.63/x
  3. Step 3: Cross multiply
    101,165.86x = 151,720.09 × 30,085.63
  4. Step 4: Simplify right side
    101,165.86x = 4,564,594,036.79
  5. Step 5: Solve for x
    x = 4,564,594,036.79/101,165.86
  6. Step 6: Final answer
    x = 45,119.90

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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.