Home / 190,720.71-286,085.93-57,605.31

Finding the Fourth Proportional to 190,720.71, 286,085.93 and 57,605.31

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Solution

The fourth proportional to 190,720.71, 286,085.93 and 57,605.31 is: 86,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,720.71 : 286,085.93 = 57,605.31 : x
  2. Step 2: Convert to fraction form
    190,720.71/286,085.93 = 57,605.31/x
  3. Step 3: Cross multiply
    190,720.71x = 286,085.93 × 57,605.31
  4. Step 4: Simplify right side
    190,720.71x = 16,480,068,396.26
  5. Step 5: Solve for x
    x = 16,480,068,396.26/190,720.71
  6. Step 6: Final answer
    x = 86,409.43

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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.