Home / 105,099.12-157,366.80-65,577.60

Finding the Fourth Proportional to 105,099.12, 157,366.80 and 65,577.60

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Solution

The fourth proportional to 105,099.12, 157,366.80 and 65,577.60 is: 98,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,099.12 : 157,366.80 = 65,577.60 : x
  2. Step 2: Convert to fraction form
    105,099.12/157,366.80 = 65,577.60/x
  3. Step 3: Cross multiply
    105,099.12x = 157,366.80 × 65,577.60
  4. Step 4: Simplify right side
    105,099.12x = 10,319,737,063.68
  5. Step 5: Solve for x
    x = 10,319,737,063.68/105,099.12
  6. Step 6: Final answer
    x = 98,190.52

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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.