Home / 156,683.64-234,965.48-66,670.05

Finding the Fourth Proportional to 156,683.64, 234,965.48 and 66,670.05

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Solution

The fourth proportional to 156,683.64, 234,965.48 and 66,670.05 is: 99,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,683.64 : 234,965.48 = 66,670.05 : x
  2. Step 2: Convert to fraction form
    156,683.64/234,965.48 = 66,670.05/x
  3. Step 3: Cross multiply
    156,683.64x = 234,965.48 × 66,670.05
  4. Step 4: Simplify right side
    156,683.64x = 15,665,160,299.87
  5. Step 5: Solve for x
    x = 15,665,160,299.87/156,683.64
  6. Step 6: Final answer
    x = 99,979.55

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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.