Home / 190,820.30-286,230.45-57,721.10

Finding the Fourth Proportional to 190,820.30, 286,230.45 and 57,721.10

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Solution

The fourth proportional to 190,820.30, 286,230.45 and 57,721.10 is: 86,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,820.30 : 286,230.45 = 57,721.10 : x
  2. Step 2: Convert to fraction form
    190,820.30/286,230.45 = 57,721.10/x
  3. Step 3: Cross multiply
    190,820.30x = 286,230.45 × 57,721.10
  4. Step 4: Simplify right side
    190,820.30x = 16,521,536,427.50
  5. Step 5: Solve for x
    x = 16,521,536,427.50/190,820.30
  6. Step 6: Final answer
    x = 86,581.65

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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.