Home / 120,904.40-181,356.60-83,579.60

Finding the Fourth Proportional to 120,904.40, 181,356.60 and 83,579.60

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Solution

The fourth proportional to 120,904.40, 181,356.60 and 83,579.60 is: 125,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,904.40 : 181,356.60 = 83,579.60 : x
  2. Step 2: Convert to fraction form
    120,904.40/181,356.60 = 83,579.60/x
  3. Step 3: Cross multiply
    120,904.40x = 181,356.60 × 83,579.60
  4. Step 4: Simplify right side
    120,904.40x = 15,157,712,085.36
  5. Step 5: Solve for x
    x = 15,157,712,085.36/120,904.40
  6. Step 6: Final answer
    x = 125,369.40

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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.