Home / 190,143.63-262,398.27-105,260.69

Finding the Fourth Proportional to 190,143.63, 262,398.27 and 105,260.69

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Solution

The fourth proportional to 190,143.63, 262,398.27 and 105,260.69 is: 145,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,143.63 : 262,398.27 = 105,260.69 : x
  2. Step 2: Convert to fraction form
    190,143.63/262,398.27 = 105,260.69/x
  3. Step 3: Cross multiply
    190,143.63x = 262,398.27 × 105,260.69
  4. Step 4: Simplify right side
    190,143.63x = 27,620,221,643.02
  5. Step 5: Solve for x
    x = 27,620,221,643.02/190,143.63
  6. Step 6: Final answer
    x = 145,259.78

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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.