Home / 115,665.88-159,616.26-64,679.32

Finding the Fourth Proportional to 115,665.88, 159,616.26 and 64,679.32

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Solution

The fourth proportional to 115,665.88, 159,616.26 and 64,679.32 is: 89,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,665.88 : 159,616.26 = 64,679.32 : x
  2. Step 2: Convert to fraction form
    115,665.88/159,616.26 = 64,679.32/x
  3. Step 3: Cross multiply
    115,665.88x = 159,616.26 × 64,679.32
  4. Step 4: Simplify right side
    115,665.88x = 10,323,871,157.74
  5. Step 5: Solve for x
    x = 10,323,871,157.74/115,665.88
  6. Step 6: Final answer
    x = 89,255.98

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1.5x scale

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.