Home / 125,566.20-188,495.10-72,300.60

Finding the Fourth Proportional to 125,566.20, 188,495.10 and 72,300.60

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Solution

The fourth proportional to 125,566.20, 188,495.10 and 72,300.60 is: 108,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,566.20 : 188,495.10 = 72,300.60 : x
  2. Step 2: Convert to fraction form
    125,566.20/188,495.10 = 72,300.60/x
  3. Step 3: Cross multiply
    125,566.20x = 188,495.10 × 72,300.60
  4. Step 4: Simplify right side
    125,566.20x = 13,628,308,827.06
  5. Step 5: Solve for x
    x = 13,628,308,827.06/125,566.20
  6. Step 6: Final answer
    x = 108,534.85

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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.