Home / 109,116.68-150,588.90-66,683.32

Finding the Fourth Proportional to 109,116.68, 150,588.90 and 66,683.32

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Solution

The fourth proportional to 109,116.68, 150,588.90 and 66,683.32 is: 92,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,116.68 : 150,588.90 = 66,683.32 : x
  2. Step 2: Convert to fraction form
    109,116.68/150,588.90 = 66,683.32/x
  3. Step 3: Cross multiply
    109,116.68x = 150,588.90 × 66,683.32
  4. Step 4: Simplify right side
    109,116.68x = 10,041,767,807.15
  5. Step 5: Solve for x
    x = 10,041,767,807.15/109,116.68
  6. Step 6: Final answer
    x = 92,027.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.