Home / 124,121.10-186,258.60-64,999.20

Finding the Fourth Proportional to 124,121.10, 186,258.60 and 64,999.20

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Solution

The fourth proportional to 124,121.10, 186,258.60 and 64,999.20 is: 97,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,121.10 : 186,258.60 = 64,999.20 : x
  2. Step 2: Convert to fraction form
    124,121.10/186,258.60 = 64,999.20/x
  3. Step 3: Cross multiply
    124,121.10x = 186,258.60 × 64,999.20
  4. Step 4: Simplify right side
    124,121.10x = 12,106,659,993.12
  5. Step 5: Solve for x
    x = 12,106,659,993.12/124,121.10
  6. Step 6: Final answer
    x = 97,539.10

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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.