Home / 119,985.60-179,632.80-73,329.60

Finding the Fourth Proportional to 119,985.60, 179,632.80 and 73,329.60

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Solution

The fourth proportional to 119,985.60, 179,632.80 and 73,329.60 is: 109,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,985.60 : 179,632.80 = 73,329.60 : x
  2. Step 2: Convert to fraction form
    119,985.60/179,632.80 = 73,329.60/x
  3. Step 3: Cross multiply
    119,985.60x = 179,632.80 × 73,329.60
  4. Step 4: Simplify right side
    119,985.60x = 13,172,401,370.88
  5. Step 5: Solve for x
    x = 13,172,401,370.88/119,985.60
  6. Step 6: Final answer
    x = 109,783.19

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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.