Home / 121,370.40-182,055.60-90,266.40

Finding the Fourth Proportional to 121,370.40, 182,055.60 and 90,266.40

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Solution

The fourth proportional to 121,370.40, 182,055.60 and 90,266.40 is: 135,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,370.40 : 182,055.60 = 90,266.40 : x
  2. Step 2: Convert to fraction form
    121,370.40/182,055.60 = 90,266.40/x
  3. Step 3: Cross multiply
    121,370.40x = 182,055.60 × 90,266.40
  4. Step 4: Simplify right side
    121,370.40x = 16,433,503,611.84
  5. Step 5: Solve for x
    x = 16,433,503,611.84/121,370.40
  6. Step 6: Final answer
    x = 135,399.60

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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.