Home / 161,683.49-221,507.43-155,623.04

Finding the Fourth Proportional to 161,683.49, 221,507.43 and 155,623.04

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Solution

The fourth proportional to 161,683.49, 221,507.43 and 155,623.04 is: 213,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,683.49 : 221,507.43 = 155,623.04 : x
  2. Step 2: Convert to fraction form
    161,683.49/221,507.43 = 155,623.04/x
  3. Step 3: Cross multiply
    161,683.49x = 221,507.43 × 155,623.04
  4. Step 4: Simplify right side
    161,683.49x = 34,471,658,778.72
  5. Step 5: Solve for x
    x = 34,471,658,778.72/161,683.49
  6. Step 6: Final answer
    x = 213,204.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.