Home / 190,299.84-285,235.92-90,378.24

Finding the Fourth Proportional to 190,299.84, 285,235.92 and 90,378.24

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Solution

The fourth proportional to 190,299.84, 285,235.92 and 90,378.24 is: 135,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,299.84 : 285,235.92 = 90,378.24 : x
  2. Step 2: Convert to fraction form
    190,299.84/285,235.92 = 90,378.24/x
  3. Step 3: Cross multiply
    190,299.84x = 285,235.92 × 90,378.24
  4. Step 4: Simplify right side
    190,299.84x = 25,779,120,434.38
  5. Step 5: Solve for x
    x = 25,779,120,434.38/190,299.84
  6. Step 6: Final answer
    x = 135,465.80

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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.