Home / 190,837.40-286,256.10-111,011.90

Finding the Fourth Proportional to 190,837.40, 286,256.10 and 111,011.90

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Solution

The fourth proportional to 190,837.40, 286,256.10 and 111,011.90 is: 166,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,837.40 : 286,256.10 = 111,011.90 : x
  2. Step 2: Convert to fraction form
    190,837.40/286,256.10 = 111,011.90/x
  3. Step 3: Cross multiply
    190,837.40x = 286,256.10 × 111,011.90
  4. Step 4: Simplify right side
    190,837.40x = 31,777,833,547.59
  5. Step 5: Solve for x
    x = 31,777,833,547.59/190,837.40
  6. Step 6: Final answer
    x = 166,517.85

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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.