Home / 189,208.47-261,104.34-103,168.13

Finding the Fourth Proportional to 189,208.47, 261,104.34 and 103,168.13

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Solution

The fourth proportional to 189,208.47, 261,104.34 and 103,168.13 is: 142,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,208.47 : 261,104.34 = 103,168.13 : x
  2. Step 2: Convert to fraction form
    189,208.47/261,104.34 = 103,168.13/x
  3. Step 3: Cross multiply
    189,208.47x = 261,104.34 × 103,168.13
  4. Step 4: Simplify right side
    189,208.47x = 26,937,645,574.04
  5. Step 5: Solve for x
    x = 26,937,645,574.04/189,208.47
  6. Step 6: Final answer
    x = 142,370.19

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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.