Home / 115,427.08-159,288.74-64,436.86

Finding the Fourth Proportional to 115,427.08, 159,288.74 and 64,436.86

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Solution

The fourth proportional to 115,427.08, 159,288.74 and 64,436.86 is: 88,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,427.08 : 159,288.74 = 64,436.86 : x
  2. Step 2: Convert to fraction form
    115,427.08/159,288.74 = 64,436.86/x
  3. Step 3: Cross multiply
    115,427.08x = 159,288.74 × 64,436.86
  4. Step 4: Simplify right side
    115,427.08x = 10,264,066,238.96
  5. Step 5: Solve for x
    x = 10,264,066,238.96/115,427.08
  6. Step 6: Final answer
    x = 88,922.51

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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.