Home / 149,730.50-206,604.60-86,056.40

Finding the Fourth Proportional to 149,730.50, 206,604.60 and 86,056.40

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Solution

The fourth proportional to 149,730.50, 206,604.60 and 86,056.40 is: 118,744.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,730.50 : 206,604.60 = 86,056.40 : x
  2. Step 2: Convert to fraction form
    149,730.50/206,604.60 = 86,056.40/x
  3. Step 3: Cross multiply
    149,730.50x = 206,604.60 × 86,056.40
  4. Step 4: Simplify right side
    149,730.50x = 17,779,648,099.44
  5. Step 5: Solve for x
    x = 17,779,648,099.44/149,730.50
  6. Step 6: Final answer
    x = 118,744.33

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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.