Home / 120,475.86-180,709.34-57,341.22

Finding the Fourth Proportional to 120,475.86, 180,709.34 and 57,341.22

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Solution

The fourth proportional to 120,475.86, 180,709.34 and 57,341.22 is: 86,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.86 : 180,709.34 = 57,341.22 : x
  2. Step 2: Convert to fraction form
    120,475.86/180,709.34 = 57,341.22/x
  3. Step 3: Cross multiply
    120,475.86x = 180,709.34 × 57,341.22
  4. Step 4: Simplify right side
    120,475.86x = 10,362,093,734.29
  5. Step 5: Solve for x
    x = 10,362,093,734.29/120,475.86
  6. Step 6: Final answer
    x = 86,009.71

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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.