Home / 90,284.96-135,125.27-89,090.15

Finding the Fourth Proportional to 90,284.96, 135,125.27 and 89,090.15

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Solution

The fourth proportional to 90,284.96, 135,125.27 and 89,090.15 is: 133,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,284.96 : 135,125.27 = 89,090.15 : x
  2. Step 2: Convert to fraction form
    90,284.96/135,125.27 = 89,090.15/x
  3. Step 3: Cross multiply
    90,284.96x = 135,125.27 × 89,090.15
  4. Step 4: Simplify right side
    90,284.96x = 12,038,329,452.01
  5. Step 5: Solve for x
    x = 12,038,329,452.01/90,284.96
  6. Step 6: Final answer
    x = 133,337.05

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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.