Home / 125,802.02-188,647.63-66,623.86

Finding the Fourth Proportional to 125,802.02, 188,647.63 and 66,623.86

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Solution

The fourth proportional to 125,802.02, 188,647.63 and 66,623.86 is: 99,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,802.02 : 188,647.63 = 66,623.86 : x
  2. Step 2: Convert to fraction form
    125,802.02/188,647.63 = 66,623.86/x
  3. Step 3: Cross multiply
    125,802.02x = 188,647.63 × 66,623.86
  4. Step 4: Simplify right side
    125,802.02x = 12,568,433,290.45
  5. Step 5: Solve for x
    x = 12,568,433,290.45/125,802.02
  6. Step 6: Final answer
    x = 99,906.45

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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.