Home / 154,515.83-213,226.86-85,602.46

Finding the Fourth Proportional to 154,515.83, 213,226.86 and 85,602.46

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Solution

The fourth proportional to 154,515.83, 213,226.86 and 85,602.46 is: 118,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,515.83 : 213,226.86 = 85,602.46 : x
  2. Step 2: Convert to fraction form
    154,515.83/213,226.86 = 85,602.46/x
  3. Step 3: Cross multiply
    154,515.83x = 213,226.86 × 85,602.46
  4. Step 4: Simplify right side
    154,515.83x = 18,252,742,687.94
  5. Step 5: Solve for x
    x = 18,252,742,687.94/154,515.83
  6. Step 6: Final answer
    x = 118,128.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.