Home / 105,634.46-158,345.06-66,219.26

Finding the Fourth Proportional to 105,634.46, 158,345.06 and 66,219.26

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Solution

The fourth proportional to 105,634.46, 158,345.06 and 66,219.26 is: 99,262.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,634.46 : 158,345.06 = 66,219.26 : x
  2. Step 2: Convert to fraction form
    105,634.46/158,345.06 = 66,219.26/x
  3. Step 3: Cross multiply
    105,634.46x = 158,345.06 × 66,219.26
  4. Step 4: Simplify right side
    105,634.46x = 10,485,492,697.86
  5. Step 5: Solve for x
    x = 10,485,492,697.86/105,634.46
  6. Step 6: Final answer
    x = 99,262.05

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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.