Home / 151,623.70-209,223.96-87,949.18

Finding the Fourth Proportional to 151,623.70, 209,223.96 and 87,949.18

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Solution

The fourth proportional to 151,623.70, 209,223.96 and 87,949.18 is: 121,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,623.70 : 209,223.96 = 87,949.18 : x
  2. Step 2: Convert to fraction form
    151,623.70/209,223.96 = 87,949.18/x
  3. Step 3: Cross multiply
    151,623.70x = 209,223.96 × 87,949.18
  4. Step 4: Simplify right side
    151,623.70x = 18,401,075,718.35
  5. Step 5: Solve for x
    x = 18,401,075,718.35/151,623.70
  6. Step 6: Final answer
    x = 121,360.15

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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.