Home / 189,475.24-261,570.36-117,878.32

Finding the Fourth Proportional to 189,475.24, 261,570.36 and 117,878.32

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Solution

The fourth proportional to 189,475.24, 261,570.36 and 117,878.32 is: 162,730.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,475.24 : 261,570.36 = 117,878.32 : x
  2. Step 2: Convert to fraction form
    189,475.24/261,570.36 = 117,878.32/x
  3. Step 3: Cross multiply
    189,475.24x = 261,570.36 × 117,878.32
  4. Step 4: Simplify right side
    189,475.24x = 30,833,474,598.60
  5. Step 5: Solve for x
    x = 30,833,474,598.60/189,475.24
  6. Step 6: Final answer
    x = 162,730.89

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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.