Home / 151,749.70-209,428.80-113,442.86

Finding the Fourth Proportional to 151,749.70, 209,428.80 and 113,442.86

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Solution

The fourth proportional to 151,749.70, 209,428.80 and 113,442.86 is: 156,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,749.70 : 209,428.80 = 113,442.86 : x
  2. Step 2: Convert to fraction form
    151,749.70/209,428.80 = 113,442.86/x
  3. Step 3: Cross multiply
    151,749.70x = 209,428.80 × 113,442.86
  4. Step 4: Simplify right side
    151,749.70x = 23,758,202,038.37
  5. Step 5: Solve for x
    x = 23,758,202,038.37/151,749.70
  6. Step 6: Final answer
    x = 156,561.77

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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.