Home / 190,162.29-285,388.03-70,332.61

Finding the Fourth Proportional to 190,162.29, 285,388.03 and 70,332.61

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Solution

The fourth proportional to 190,162.29, 285,388.03 and 70,332.61 is: 105,552.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,162.29 : 285,388.03 = 70,332.61 : x
  2. Step 2: Convert to fraction form
    190,162.29/285,388.03 = 70,332.61/x
  3. Step 3: Cross multiply
    190,162.29x = 285,388.03 × 70,332.61
  4. Step 4: Simplify right side
    190,162.29x = 20,072,083,776.30
  5. Step 5: Solve for x
    x = 20,072,083,776.30/190,162.29
  6. Step 6: Final answer
    x = 105,552.39

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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.