Home / 137,455.44-189,779.92-105,567.36

Finding the Fourth Proportional to 137,455.44, 189,779.92 and 105,567.36

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Solution

The fourth proportional to 137,455.44, 189,779.92 and 105,567.36 is: 145,753.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,455.44 : 189,779.92 = 105,567.36 : x
  2. Step 2: Convert to fraction form
    137,455.44/189,779.92 = 105,567.36/x
  3. Step 3: Cross multiply
    137,455.44x = 189,779.92 × 105,567.36
  4. Step 4: Simplify right side
    137,455.44x = 20,034,565,135.41
  5. Step 5: Solve for x
    x = 20,034,565,135.41/137,455.44
  6. Step 6: Final answer
    x = 145,753.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.