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Finding the Fourth Proportional to 145,693.32, 218,741.20 and 100,608.86

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Solution

The fourth proportional to 145,693.32, 218,741.20 and 100,608.86 is: 151,052.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,693.32 : 218,741.20 = 100,608.86 : x
  2. Step 2: Convert to fraction form
    145,693.32/218,741.20 = 100,608.86/x
  3. Step 3: Cross multiply
    145,693.32x = 218,741.20 × 100,608.86
  4. Step 4: Simplify right side
    145,693.32x = 22,007,302,767.03
  5. Step 5: Solve for x
    x = 22,007,302,767.03/145,693.32
  6. Step 6: Final answer
    x = 151,052.24

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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.