Home / 171,631.60-257,447.40-142,471.60

Finding the Fourth Proportional to 171,631.60, 257,447.40 and 142,471.60

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Solution

The fourth proportional to 171,631.60, 257,447.40 and 142,471.60 is: 213,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,631.60 : 257,447.40 = 142,471.60 : x
  2. Step 2: Convert to fraction form
    171,631.60/257,447.40 = 142,471.60/x
  3. Step 3: Cross multiply
    171,631.60x = 257,447.40 × 142,471.60
  4. Step 4: Simplify right side
    171,631.60x = 36,678,942,993.84
  5. Step 5: Solve for x
    x = 36,678,942,993.84/171,631.60
  6. Step 6: Final answer
    x = 213,707.40

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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.