Home / 151,101.63-208,527.30-87,427.11

Finding the Fourth Proportional to 151,101.63, 208,527.30 and 87,427.11

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Solution

The fourth proportional to 151,101.63, 208,527.30 and 87,427.11 is: 120,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,101.63 : 208,527.30 = 87,427.11 : x
  2. Step 2: Convert to fraction form
    151,101.63/208,527.30 = 87,427.11/x
  3. Step 3: Cross multiply
    151,101.63x = 208,527.30 × 87,427.11
  4. Step 4: Simplify right side
    151,101.63x = 18,230,939,195.10
  5. Step 5: Solve for x
    x = 18,230,939,195.10/151,101.63
  6. Step 6: Final answer
    x = 120,653.49

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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.