Home / 100,762.31-151,018.92-50,856.72

Finding the Fourth Proportional to 100,762.31, 151,018.92 and 50,856.72

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Solution

The fourth proportional to 100,762.31, 151,018.92 and 50,856.72 is: 76,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,762.31 : 151,018.92 = 50,856.72 : x
  2. Step 2: Convert to fraction form
    100,762.31/151,018.92 = 50,856.72/x
  3. Step 3: Cross multiply
    100,762.31x = 151,018.92 × 50,856.72
  4. Step 4: Simplify right side
    100,762.31x = 7,680,326,929.14
  5. Step 5: Solve for x
    x = 7,680,326,929.14/100,762.31
  6. Step 6: Final answer
    x = 76,222.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.