Home / 190,477.15-285,755.69-72,145.87

Finding the Fourth Proportional to 190,477.15, 285,755.69 and 72,145.87

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Solution

The fourth proportional to 190,477.15, 285,755.69 and 72,145.87 is: 108,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,477.15 : 285,755.69 = 72,145.87 : x
  2. Step 2: Convert to fraction form
    190,477.15/285,755.69 = 72,145.87/x
  3. Step 3: Cross multiply
    190,477.15x = 285,755.69 × 72,145.87
  4. Step 4: Simplify right side
    190,477.15x = 20,616,092,862.50
  5. Step 5: Solve for x
    x = 20,616,092,862.50/190,477.15
  6. Step 6: Final answer
    x = 108,233.94

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1.5x scale

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.