Home / 159,621.02-220,270.23-87,022.34

Finding the Fourth Proportional to 159,621.02, 220,270.23 and 87,022.34

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Solution

The fourth proportional to 159,621.02, 220,270.23 and 87,022.34 is: 120,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,621.02 : 220,270.23 = 87,022.34 : x
  2. Step 2: Convert to fraction form
    159,621.02/220,270.23 = 87,022.34/x
  3. Step 3: Cross multiply
    159,621.02x = 220,270.23 × 87,022.34
  4. Step 4: Simplify right side
    159,621.02x = 19,168,430,846.94
  5. Step 5: Solve for x
    x = 19,168,430,846.94/159,621.02
  6. Step 6: Final answer
    x = 120,087.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.