Home / 189,501.73-261,501.11-103,443.58

Finding the Fourth Proportional to 189,501.73, 261,501.11 and 103,443.58

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Solution

The fourth proportional to 189,501.73, 261,501.11 and 103,443.58 is: 142,745.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,501.73 : 261,501.11 = 103,443.58 : x
  2. Step 2: Convert to fraction form
    189,501.73/261,501.11 = 103,443.58/x
  3. Step 3: Cross multiply
    189,501.73x = 261,501.11 × 103,443.58
  4. Step 4: Simplify right side
    189,501.73x = 27,050,611,189.95
  5. Step 5: Solve for x
    x = 27,050,611,189.95/189,501.73
  6. Step 6: Final answer
    x = 142,745.99

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1.5x scale

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.