Home / 189,225.52-261,133.17-104,345.62

Finding the Fourth Proportional to 189,225.52, 261,133.17 and 104,345.62

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Solution

The fourth proportional to 189,225.52, 261,133.17 and 104,345.62 is: 143,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.52 : 261,133.17 = 104,345.62 : x
  2. Step 2: Convert to fraction form
    189,225.52/261,133.17 = 104,345.62/x
  3. Step 3: Cross multiply
    189,225.52x = 261,133.17 × 104,345.62
  4. Step 4: Simplify right side
    189,225.52x = 27,248,101,482.09
  5. Step 5: Solve for x
    x = 27,248,101,482.09/189,225.52
  6. Step 6: Final answer
    x = 143,998.03

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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.