Home / 158,173.45-218,278.76-85,576.11

Finding the Fourth Proportional to 158,173.45, 218,278.76 and 85,576.11

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Solution

The fourth proportional to 158,173.45, 218,278.76 and 85,576.11 is: 118,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,173.45 : 218,278.76 = 85,576.11 : x
  2. Step 2: Convert to fraction form
    158,173.45/218,278.76 = 85,576.11/x
  3. Step 3: Cross multiply
    158,173.45x = 218,278.76 × 85,576.11
  4. Step 4: Simplify right side
    158,173.45x = 18,679,446,085.03
  5. Step 5: Solve for x
    x = 18,679,446,085.03/158,173.45
  6. Step 6: Final answer
    x = 118,094.70

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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.