Home / 190,806.36-286,305.12-90,941.46

Finding the Fourth Proportional to 190,806.36, 286,305.12 and 90,941.46

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Solution

The fourth proportional to 190,806.36, 286,305.12 and 90,941.46 is: 136,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,806.36 : 286,305.12 = 90,941.46 : x
  2. Step 2: Convert to fraction form
    190,806.36/286,305.12 = 90,941.46/x
  3. Step 3: Cross multiply
    190,806.36x = 286,305.12 × 90,941.46
  4. Step 4: Simplify right side
    190,806.36x = 26,037,005,618.28
  5. Step 5: Solve for x
    x = 26,037,005,618.28/190,806.36
  6. Step 6: Final answer
    x = 136,457.75

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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.