Home / 192,010.95-287,600.85-139,304.25

Finding the Fourth Proportional to 192,010.95, 287,600.85 and 139,304.25

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Solution

The fourth proportional to 192,010.95, 287,600.85 and 139,304.25 is: 208,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,010.95 : 287,600.85 = 139,304.25 : x
  2. Step 2: Convert to fraction form
    192,010.95/287,600.85 = 139,304.25/x
  3. Step 3: Cross multiply
    192,010.95x = 287,600.85 × 139,304.25
  4. Step 4: Simplify right side
    192,010.95x = 40,064,020,708.61
  5. Step 5: Solve for x
    x = 40,064,020,708.61/192,010.95
  6. Step 6: Final answer
    x = 208,654.87

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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.