Home / 190,501.29-262,903.50-105,618.35

Finding the Fourth Proportional to 190,501.29, 262,903.50 and 105,618.35

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Solution

The fourth proportional to 190,501.29, 262,903.50 and 105,618.35 is: 145,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,501.29 : 262,903.50 = 105,618.35 : x
  2. Step 2: Convert to fraction form
    190,501.29/262,903.50 = 105,618.35/x
  3. Step 3: Cross multiply
    190,501.29x = 262,903.50 × 105,618.35
  4. Step 4: Simplify right side
    190,501.29x = 27,767,432,564.71
  5. Step 5: Solve for x
    x = 27,767,432,564.71/190,501.29
  6. Step 6: Final answer
    x = 145,759.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.