Home / 108,586.27-149,661.87-72,222.64

Finding the Fourth Proportional to 108,586.27, 149,661.87 and 72,222.64

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Solution

The fourth proportional to 108,586.27, 149,661.87 and 72,222.64 is: 99,542.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,586.27 : 149,661.87 = 72,222.64 : x
  2. Step 2: Convert to fraction form
    108,586.27/149,661.87 = 72,222.64/x
  3. Step 3: Cross multiply
    108,586.27x = 149,661.87 × 72,222.64
  4. Step 4: Simplify right side
    108,586.27x = 10,808,975,358.74
  5. Step 5: Solve for x
    x = 10,808,975,358.74/108,586.27
  6. Step 6: Final answer
    x = 99,542.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.