Home / 190,910.45-286,369.31-57,790.19

Finding the Fourth Proportional to 190,910.45, 286,369.31 and 57,790.19

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Solution

The fourth proportional to 190,910.45, 286,369.31 and 57,790.19 is: 86,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,910.45 : 286,369.31 = 57,790.19 : x
  2. Step 2: Convert to fraction form
    190,910.45/286,369.31 = 57,790.19/x
  3. Step 3: Cross multiply
    190,910.45x = 286,369.31 × 57,790.19
  4. Step 4: Simplify right side
    190,910.45x = 16,549,335,547.70
  5. Step 5: Solve for x
    x = 16,549,335,547.70/190,910.45
  6. Step 6: Final answer
    x = 86,686.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.