Home / 190,046.43-285,071.63-77,649.89

Finding the Fourth Proportional to 190,046.43, 285,071.63 and 77,649.89

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Solution

The fourth proportional to 190,046.43, 285,071.63 and 77,649.89 is: 116,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,046.43 : 285,071.63 = 77,649.89 : x
  2. Step 2: Convert to fraction form
    190,046.43/285,071.63 = 77,649.89/x
  3. Step 3: Cross multiply
    190,046.43x = 285,071.63 × 77,649.89
  4. Step 4: Simplify right side
    190,046.43x = 22,135,778,898.01
  5. Step 5: Solve for x
    x = 22,135,778,898.01/190,046.43
  6. Step 6: Final answer
    x = 116,475.64

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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.