Home / 109,243.69-163,865.53-30,358.60

Finding the Fourth Proportional to 109,243.69, 163,865.53 and 30,358.60

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Solution

The fourth proportional to 109,243.69, 163,865.53 and 30,358.60 is: 45,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,243.69 : 163,865.53 = 30,358.60 : x
  2. Step 2: Convert to fraction form
    109,243.69/163,865.53 = 30,358.60/x
  3. Step 3: Cross multiply
    109,243.69x = 163,865.53 × 30,358.60
  4. Step 4: Simplify right side
    109,243.69x = 4,974,727,707.34
  5. Step 5: Solve for x
    x = 4,974,727,707.34/109,243.69
  6. Step 6: Final answer
    x = 45,537.90

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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.