Home / 160,639.57-221,683.85-89,020.75

Finding the Fourth Proportional to 160,639.57, 221,683.85 and 89,020.75

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Solution

The fourth proportional to 160,639.57, 221,683.85 and 89,020.75 is: 122,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,639.57 : 221,683.85 = 89,020.75 : x
  2. Step 2: Convert to fraction form
    160,639.57/221,683.85 = 89,020.75/x
  3. Step 3: Cross multiply
    160,639.57x = 221,683.85 × 89,020.75
  4. Step 4: Simplify right side
    160,639.57x = 19,734,462,144.78
  5. Step 5: Solve for x
    x = 19,734,462,144.78/160,639.57
  6. Step 6: Final answer
    x = 122,849.32

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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.