Home / 149,010.94-205,637.13-85,348.69

Finding the Fourth Proportional to 149,010.94, 205,637.13 and 85,348.69

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Solution

The fourth proportional to 149,010.94, 205,637.13 and 85,348.69 is: 117,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,010.94 : 205,637.13 = 85,348.69 : x
  2. Step 2: Convert to fraction form
    149,010.94/205,637.13 = 85,348.69/x
  3. Step 3: Cross multiply
    149,010.94x = 205,637.13 × 85,348.69
  4. Step 4: Simplify right side
    149,010.94x = 17,550,859,146.77
  5. Step 5: Solve for x
    x = 17,550,859,146.77/149,010.94
  6. Step 6: Final answer
    x = 117,782.35

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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.