Home / 158,546.01-218,666.43-139,385.05

Finding the Fourth Proportional to 158,546.01, 218,666.43 and 139,385.05

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Solution

The fourth proportional to 158,546.01, 218,666.43 and 139,385.05 is: 192,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,546.01 : 218,666.43 = 139,385.05 : x
  2. Step 2: Convert to fraction form
    158,546.01/218,666.43 = 139,385.05/x
  3. Step 3: Cross multiply
    158,546.01x = 218,666.43 × 139,385.05
  4. Step 4: Simplify right side
    158,546.01x = 30,478,831,278.87
  5. Step 5: Solve for x
    x = 30,478,831,278.87/158,546.01
  6. Step 6: Final answer
    x = 192,239.66

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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.