Home / 135,444.60-203,244.66-105,779.16

Finding the Fourth Proportional to 135,444.60, 203,244.66 and 105,779.16

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Solution

The fourth proportional to 135,444.60, 203,244.66 and 105,779.16 is: 158,729.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,444.60 : 203,244.66 = 105,779.16 : x
  2. Step 2: Convert to fraction form
    135,444.60/203,244.66 = 105,779.16/x
  3. Step 3: Cross multiply
    135,444.60x = 203,244.66 × 105,779.16
  4. Step 4: Simplify right side
    135,444.60x = 21,499,049,409.29
  5. Step 5: Solve for x
    x = 21,499,049,409.29/135,444.60
  6. Step 6: Final answer
    x = 158,729.47

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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.