Home / 211,119.84-291,345.48-115,632.54

Finding the Fourth Proportional to 211,119.84, 291,345.48 and 115,632.54

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Solution

The fourth proportional to 211,119.84, 291,345.48 and 115,632.54 is: 159,572.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,119.84 : 291,345.48 = 115,632.54 : x
  2. Step 2: Convert to fraction form
    211,119.84/291,345.48 = 115,632.54/x
  3. Step 3: Cross multiply
    211,119.84x = 291,345.48 × 115,632.54
  4. Step 4: Simplify right side
    211,119.84x = 33,689,017,869.92
  5. Step 5: Solve for x
    x = 33,689,017,869.92/211,119.84
  6. Step 6: Final answer
    x = 159,572.96

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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.