Home / 97,678.55-146,328.23-71,986.23

Finding the Fourth Proportional to 97,678.55, 146,328.23 and 71,986.23

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Solution

The fourth proportional to 97,678.55, 146,328.23 and 71,986.23 is: 107,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,678.55 : 146,328.23 = 71,986.23 : x
  2. Step 2: Convert to fraction form
    97,678.55/146,328.23 = 71,986.23/x
  3. Step 3: Cross multiply
    97,678.55x = 146,328.23 × 71,986.23
  4. Step 4: Simplify right side
    97,678.55x = 10,533,617,800.24
  5. Step 5: Solve for x
    x = 10,533,617,800.24/97,678.55
  6. Step 6: Final answer
    x = 107,839.62

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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.