Home / 189,465.28-261,556.56-117,868.32

Finding the Fourth Proportional to 189,465.28, 261,556.56 and 117,868.32

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Solution

The fourth proportional to 189,465.28, 261,556.56 and 117,868.32 is: 162,717.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,465.28 : 261,556.56 = 117,868.32 : x
  2. Step 2: Convert to fraction form
    189,465.28/261,556.56 = 117,868.32/x
  3. Step 3: Cross multiply
    189,465.28x = 261,556.56 × 117,868.32
  4. Step 4: Simplify right side
    189,465.28x = 30,829,232,312.18
  5. Step 5: Solve for x
    x = 30,829,232,312.18/189,465.28
  6. Step 6: Final answer
    x = 162,717.05

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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.