Home / 189,530.40-261,541.44-117,908.16

Finding the Fourth Proportional to 189,530.40, 261,541.44 and 117,908.16

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Solution

The fourth proportional to 189,530.40, 261,541.44 and 117,908.16 is: 162,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,530.40 : 261,541.44 = 117,908.16 : x
  2. Step 2: Convert to fraction form
    189,530.40/261,541.44 = 117,908.16/x
  3. Step 3: Cross multiply
    189,530.40x = 261,541.44 × 117,908.16
  4. Step 4: Simplify right side
    189,530.40x = 30,837,869,954.15
  5. Step 5: Solve for x
    x = 30,837,869,954.15/189,530.40
  6. Step 6: Final answer
    x = 162,706.72

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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.