Home / 96,442.40-143,940.58-90,143.84

Finding the Fourth Proportional to 96,442.40, 143,940.58 and 90,143.84

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Solution

The fourth proportional to 96,442.40, 143,940.58 and 90,143.84 is: 134,539.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,442.40 : 143,940.58 = 90,143.84 : x
  2. Step 2: Convert to fraction form
    96,442.40/143,940.58 = 90,143.84/x
  3. Step 3: Cross multiply
    96,442.40x = 143,940.58 × 90,143.84
  4. Step 4: Simplify right side
    96,442.40x = 12,975,356,613.03
  5. Step 5: Solve for x
    x = 12,975,356,613.03/96,442.40
  6. Step 6: Final answer
    x = 134,539.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.