Home / 163,660.52-245,289.50-84,729.64

Finding the Fourth Proportional to 163,660.52, 245,289.50 and 84,729.64

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Solution

The fourth proportional to 163,660.52, 245,289.50 and 84,729.64 is: 126,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,660.52 : 245,289.50 = 84,729.64 : x
  2. Step 2: Convert to fraction form
    163,660.52/245,289.50 = 84,729.64/x
  3. Step 3: Cross multiply
    163,660.52x = 245,289.50 × 84,729.64
  4. Step 4: Simplify right side
    163,660.52x = 20,783,291,030.78
  5. Step 5: Solve for x
    x = 20,783,291,030.78/163,660.52
  6. Step 6: Final answer
    x = 126,990.25

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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.