Home / 105,635.46-158,346.56-66,220.26

Finding the Fourth Proportional to 105,635.46, 158,346.56 and 66,220.26

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Solution

The fourth proportional to 105,635.46, 158,346.56 and 66,220.26 is: 99,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,635.46 : 158,346.56 = 66,220.26 : x
  2. Step 2: Convert to fraction form
    105,635.46/158,346.56 = 66,220.26/x
  3. Step 3: Cross multiply
    105,635.46x = 158,346.56 × 66,220.26
  4. Step 4: Simplify right side
    105,635.46x = 10,485,750,373.31
  5. Step 5: Solve for x
    x = 10,485,750,373.31/105,635.46
  6. Step 6: Final answer
    x = 99,263.55

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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.