Home / 239,947.75-331,127.90-139,352.23

Finding the Fourth Proportional to 239,947.75, 331,127.90 and 139,352.23

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Solution

The fourth proportional to 239,947.75, 331,127.90 and 139,352.23 is: 192,306.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,947.75 : 331,127.90 = 139,352.23 : x
  2. Step 2: Convert to fraction form
    239,947.75/331,127.90 = 139,352.23/x
  3. Step 3: Cross multiply
    239,947.75x = 331,127.90 × 139,352.23
  4. Step 4: Simplify right side
    239,947.75x = 46,143,411,280.22
  5. Step 5: Solve for x
    x = 46,143,411,280.22/239,947.75
  6. Step 6: Final answer
    x = 192,306.08

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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.