Home / 189,421.57-261,400.56-104,538.64

Finding the Fourth Proportional to 189,421.57, 261,400.56 and 104,538.64

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Solution

The fourth proportional to 189,421.57, 261,400.56 and 104,538.64 is: 144,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,421.57 : 261,400.56 = 104,538.64 : x
  2. Step 2: Convert to fraction form
    189,421.57/261,400.56 = 104,538.64/x
  3. Step 3: Cross multiply
    189,421.57x = 261,400.56 × 104,538.64
  4. Step 4: Simplify right side
    189,421.57x = 27,326,459,037.64
  5. Step 5: Solve for x
    x = 27,326,459,037.64/189,421.57
  6. Step 6: Final answer
    x = 144,262.66

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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.