Home / 151,442.01-208,844.23-99,666.49

Finding the Fourth Proportional to 151,442.01, 208,844.23 and 99,666.49

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Solution

The fourth proportional to 151,442.01, 208,844.23 and 99,666.49 is: 137,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,442.01 : 208,844.23 = 99,666.49 : x
  2. Step 2: Convert to fraction form
    151,442.01/208,844.23 = 99,666.49/x
  3. Step 3: Cross multiply
    151,442.01x = 208,844.23 × 99,666.49
  4. Step 4: Simplify right side
    151,442.01x = 20,814,771,360.85
  5. Step 5: Solve for x
    x = 20,814,771,360.85/151,442.01
  6. Step 6: Final answer
    x = 137,443.84

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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.