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Finding the Fourth Proportional to 106,030.32, 159,376.08 and 66,839.28

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Solution

The fourth proportional to 106,030.32, 159,376.08 and 66,839.28 is: 100,467.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,030.32 : 159,376.08 = 66,839.28 : x
  2. Step 2: Convert to fraction form
    106,030.32/159,376.08 = 66,839.28/x
  3. Step 3: Cross multiply
    106,030.32x = 159,376.08 × 66,839.28
  4. Step 4: Simplify right side
    106,030.32x = 10,652,582,436.42
  5. Step 5: Solve for x
    x = 10,652,582,436.42/106,030.32
  6. Step 6: Final answer
    x = 100,467.32

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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.