Home / 90,106.04-135,214.65-45,764.62

Finding the Fourth Proportional to 90,106.04, 135,214.65 and 45,764.62

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Solution

The fourth proportional to 90,106.04, 135,214.65 and 45,764.62 is: 68,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.04 : 135,214.65 = 45,764.62 : x
  2. Step 2: Convert to fraction form
    90,106.04/135,214.65 = 45,764.62/x
  3. Step 3: Cross multiply
    90,106.04x = 135,214.65 × 45,764.62
  4. Step 4: Simplify right side
    90,106.04x = 6,188,046,170.79
  5. Step 5: Solve for x
    x = 6,188,046,170.79/90,106.04
  6. Step 6: Final answer
    x = 68,675.15

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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.