Home / 90,602.20-135,903.30-89,727.40

Finding the Fourth Proportional to 90,602.20, 135,903.30 and 89,727.40

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Solution

The fourth proportional to 90,602.20, 135,903.30 and 89,727.40 is: 134,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,602.20 : 135,903.30 = 89,727.40 : x
  2. Step 2: Convert to fraction form
    90,602.20/135,903.30 = 89,727.40/x
  3. Step 3: Cross multiply
    90,602.20x = 135,903.30 × 89,727.40
  4. Step 4: Simplify right side
    90,602.20x = 12,194,249,760.42
  5. Step 5: Solve for x
    x = 12,194,249,760.42/90,602.20
  6. Step 6: Final answer
    x = 134,591.10

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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.