Home / 149,464.74-206,219.61-85,779.30

Finding the Fourth Proportional to 149,464.74, 206,219.61 and 85,779.30

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Solution

The fourth proportional to 149,464.74, 206,219.61 and 85,779.30 is: 118,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,464.74 : 206,219.61 = 85,779.30 : x
  2. Step 2: Convert to fraction form
    149,464.74/206,219.61 = 85,779.30/x
  3. Step 3: Cross multiply
    149,464.74x = 206,219.61 × 85,779.30
  4. Step 4: Simplify right side
    149,464.74x = 17,689,373,792.07
  5. Step 5: Solve for x
    x = 17,689,373,792.07/149,464.74
  6. Step 6: Final answer
    x = 118,351.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.