Home / 145,986.30-218,979.45-116,461.80

Finding the Fourth Proportional to 145,986.30, 218,979.45 and 116,461.80

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Solution

The fourth proportional to 145,986.30, 218,979.45 and 116,461.80 is: 174,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,986.30 : 218,979.45 = 116,461.80 : x
  2. Step 2: Convert to fraction form
    145,986.30/218,979.45 = 116,461.80/x
  3. Step 3: Cross multiply
    145,986.30x = 218,979.45 × 116,461.80
  4. Step 4: Simplify right side
    145,986.30x = 25,502,740,910.01
  5. Step 5: Solve for x
    x = 25,502,740,910.01/145,986.30
  6. Step 6: Final answer
    x = 174,692.70

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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.