Home / 190,661.48-285,822.27-72,415.86

Finding the Fourth Proportional to 190,661.48, 285,822.27 and 72,415.86

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Solution

The fourth proportional to 190,661.48, 285,822.27 and 72,415.86 is: 108,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,661.48 : 285,822.27 = 72,415.86 : x
  2. Step 2: Convert to fraction form
    190,661.48/285,822.27 = 72,415.86/x
  3. Step 3: Cross multiply
    190,661.48x = 285,822.27 × 72,415.86
  4. Step 4: Simplify right side
    190,661.48x = 20,698,064,417.37
  5. Step 5: Solve for x
    x = 20,698,064,417.37/190,661.48
  6. Step 6: Final answer
    x = 108,559.24

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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.