Home / 115,261.37-172,555.80-70,753.18

Finding the Fourth Proportional to 115,261.37, 172,555.80 and 70,753.18

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Solution

The fourth proportional to 115,261.37, 172,555.80 and 70,753.18 is: 105,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.37 : 172,555.80 = 70,753.18 : x
  2. Step 2: Convert to fraction form
    115,261.37/172,555.80 = 70,753.18/x
  3. Step 3: Cross multiply
    115,261.37x = 172,555.80 × 70,753.18
  4. Step 4: Simplify right side
    115,261.37x = 12,208,871,577.44
  5. Step 5: Solve for x
    x = 12,208,871,577.44/115,261.37
  6. Step 6: Final answer
    x = 105,923.36

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1.5x scale

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.