Home / 190,162.81-285,250.83-90,271.54

Finding the Fourth Proportional to 190,162.81, 285,250.83 and 90,271.54

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Solution

The fourth proportional to 190,162.81, 285,250.83 and 90,271.54 is: 135,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,162.81 : 285,250.83 = 90,271.54 : x
  2. Step 2: Convert to fraction form
    190,162.81/285,250.83 = 90,271.54/x
  3. Step 3: Cross multiply
    190,162.81x = 285,250.83 × 90,271.54
  4. Step 4: Simplify right side
    190,162.81x = 25,750,031,710.38
  5. Step 5: Solve for x
    x = 25,750,031,710.38/190,162.81
  6. Step 6: Final answer
    x = 135,410.45

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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.