Home / 115,401.60-172,810.80-73,153.08

Finding the Fourth Proportional to 115,401.60, 172,810.80 and 73,153.08

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Solution

The fourth proportional to 115,401.60, 172,810.80 and 73,153.08 is: 109,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,401.60 : 172,810.80 = 73,153.08 : x
  2. Step 2: Convert to fraction form
    115,401.60/172,810.80 = 73,153.08/x
  3. Step 3: Cross multiply
    115,401.60x = 172,810.80 × 73,153.08
  4. Step 4: Simplify right side
    115,401.60x = 12,641,642,277.26
  5. Step 5: Solve for x
    x = 12,641,642,277.26/115,401.60
  6. Step 6: Final answer
    x = 109,544.77

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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.