Home / 114,742.40-172,029.72-77,209.16

Finding the Fourth Proportional to 114,742.40, 172,029.72 and 77,209.16

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Solution

The fourth proportional to 114,742.40, 172,029.72 and 77,209.16 is: 115,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,742.40 : 172,029.72 = 77,209.16 : x
  2. Step 2: Convert to fraction form
    114,742.40/172,029.72 = 77,209.16/x
  3. Step 3: Cross multiply
    114,742.40x = 172,029.72 × 77,209.16
  4. Step 4: Simplify right side
    114,742.40x = 13,282,270,176.24
  5. Step 5: Solve for x
    x = 13,282,270,176.24/114,742.40
  6. Step 6: Final answer
    x = 115,757.30

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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.