Home / 190,487.52-285,644.75-90,768.24

Finding the Fourth Proportional to 190,487.52, 285,644.75 and 90,768.24

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Solution

The fourth proportional to 190,487.52, 285,644.75 and 90,768.24 is: 136,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,487.52 : 285,644.75 = 90,768.24 : x
  2. Step 2: Convert to fraction form
    190,487.52/285,644.75 = 90,768.24/x
  3. Step 3: Cross multiply
    190,487.52x = 285,644.75 × 90,768.24
  4. Step 4: Simplify right side
    190,487.52x = 25,927,470,768.90
  5. Step 5: Solve for x
    x = 25,927,470,768.90/190,487.52
  6. Step 6: Final answer
    x = 136,111.13

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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.