Home / 90,106.13-135,214.79-45,764.71

Finding the Fourth Proportional to 90,106.13, 135,214.79 and 45,764.71

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Solution

The fourth proportional to 90,106.13, 135,214.79 and 45,764.71 is: 68,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.13 : 135,214.79 = 45,764.71 : x
  2. Step 2: Convert to fraction form
    90,106.13/135,214.79 = 45,764.71/x
  3. Step 3: Cross multiply
    90,106.13x = 135,214.79 × 45,764.71
  4. Step 4: Simplify right side
    90,106.13x = 6,188,065,368.63
  5. Step 5: Solve for x
    x = 6,188,065,368.63/90,106.13
  6. Step 6: Final answer
    x = 68,675.30

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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.