Home / 114,739.80-172,158.30-72,652.20

Finding the Fourth Proportional to 114,739.80, 172,158.30 and 72,652.20

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Solution

The fourth proportional to 114,739.80, 172,158.30 and 72,652.20 is: 109,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,739.80 : 172,158.30 = 72,652.20 : x
  2. Step 2: Convert to fraction form
    114,739.80/172,158.30 = 72,652.20/x
  3. Step 3: Cross multiply
    114,739.80x = 172,158.30 × 72,652.20
  4. Step 4: Simplify right side
    114,739.80x = 12,507,679,243.26
  5. Step 5: Solve for x
    x = 12,507,679,243.26/114,739.80
  6. Step 6: Final answer
    x = 109,009.07

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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.