Home / 140,887.05-194,444.07-87,189.39

Finding the Fourth Proportional to 140,887.05, 194,444.07 and 87,189.39

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Solution

The fourth proportional to 140,887.05, 194,444.07 and 87,189.39 is: 120,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,887.05 : 194,444.07 = 87,189.39 : x
  2. Step 2: Convert to fraction form
    140,887.05/194,444.07 = 87,189.39/x
  3. Step 3: Cross multiply
    140,887.05x = 194,444.07 × 87,189.39
  4. Step 4: Simplify right side
    140,887.05x = 16,953,459,852.42
  5. Step 5: Solve for x
    x = 16,953,459,852.42/140,887.05
  6. Step 6: Final answer
    x = 120,333.70

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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.