Home / 189,143.24-261,014.27-103,102.94

Finding the Fourth Proportional to 189,143.24, 261,014.27 and 103,102.94

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Solution

The fourth proportional to 189,143.24, 261,014.27 and 103,102.94 is: 142,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,143.24 : 261,014.27 = 103,102.94 : x
  2. Step 2: Convert to fraction form
    189,143.24/261,014.27 = 103,102.94/x
  3. Step 3: Cross multiply
    189,143.24x = 261,014.27 × 103,102.94
  4. Step 4: Simplify right side
    189,143.24x = 26,911,338,755.97
  5. Step 5: Solve for x
    x = 26,911,338,755.97/189,143.24
  6. Step 6: Final answer
    x = 142,280.21

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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.