Home / 106,913.40-160,370.10-90,000.60

Finding the Fourth Proportional to 106,913.40, 160,370.10 and 90,000.60

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Solution

The fourth proportional to 106,913.40, 160,370.10 and 90,000.60 is: 135,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,913.40 : 160,370.10 = 90,000.60 : x
  2. Step 2: Convert to fraction form
    106,913.40/160,370.10 = 90,000.60/x
  3. Step 3: Cross multiply
    106,913.40x = 160,370.10 × 90,000.60
  4. Step 4: Simplify right side
    106,913.40x = 14,433,405,222.06
  5. Step 5: Solve for x
    x = 14,433,405,222.06/106,913.40
  6. Step 6: Final answer
    x = 135,000.90

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1.5x scale

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.