Home / 165,485.12-248,332.58-70,715.96

Finding the Fourth Proportional to 165,485.12, 248,332.58 and 70,715.96

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Solution

The fourth proportional to 165,485.12, 248,332.58 and 70,715.96 is: 106,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,485.12 : 248,332.58 = 70,715.96 : x
  2. Step 2: Convert to fraction form
    165,485.12/248,332.58 = 70,715.96/x
  3. Step 3: Cross multiply
    165,485.12x = 248,332.58 × 70,715.96
  4. Step 4: Simplify right side
    165,485.12x = 17,561,076,793.98
  5. Step 5: Solve for x
    x = 17,561,076,793.98/165,485.12
  6. Step 6: Final answer
    x = 106,118.77

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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.