Home / 190,427.20-285,665.64-70,467.82

Finding the Fourth Proportional to 190,427.20, 285,665.64 and 70,467.82

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Solution

The fourth proportional to 190,427.20, 285,665.64 and 70,467.82 is: 105,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,427.20 : 285,665.64 = 70,467.82 : x
  2. Step 2: Convert to fraction form
    190,427.20/285,665.64 = 70,467.82/x
  3. Step 3: Cross multiply
    190,427.20x = 285,665.64 × 70,467.82
  4. Step 4: Simplify right side
    190,427.20x = 20,130,234,899.70
  5. Step 5: Solve for x
    x = 20,130,234,899.70/190,427.20
  6. Step 6: Final answer
    x = 105,710.92

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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.