Home / 189,130.24-260,980.50-108,538.48

Finding the Fourth Proportional to 189,130.24, 260,980.50 and 108,538.48

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Solution

The fourth proportional to 189,130.24, 260,980.50 and 108,538.48 is: 149,772.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,130.24 : 260,980.50 = 108,538.48 : x
  2. Step 2: Convert to fraction form
    189,130.24/260,980.50 = 108,538.48/x
  3. Step 3: Cross multiply
    189,130.24x = 260,980.50 × 108,538.48
  4. Step 4: Simplify right side
    189,130.24x = 28,326,426,779.64
  5. Step 5: Solve for x
    x = 28,326,426,779.64/189,130.24
  6. Step 6: Final answer
    x = 149,772.07

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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.