Home / 145,840.02-218,676.60-86,717.04

Finding the Fourth Proportional to 145,840.02, 218,676.60 and 86,717.04

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Solution

The fourth proportional to 145,840.02, 218,676.60 and 86,717.04 is: 130,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,840.02 : 218,676.60 = 86,717.04 : x
  2. Step 2: Convert to fraction form
    145,840.02/218,676.60 = 86,717.04/x
  3. Step 3: Cross multiply
    145,840.02x = 218,676.60 × 86,717.04
  4. Step 4: Simplify right side
    145,840.02x = 18,962,987,469.26
  5. Step 5: Solve for x
    x = 18,962,987,469.26/145,840.02
  6. Step 6: Final answer
    x = 130,025.95

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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.