Home / 135,485.04-186,969.22-75,059.45

Finding the Fourth Proportional to 135,485.04, 186,969.22 and 75,059.45

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Solution

The fourth proportional to 135,485.04, 186,969.22 and 75,059.45 is: 103,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,485.04 : 186,969.22 = 75,059.45 : x
  2. Step 2: Convert to fraction form
    135,485.04/186,969.22 = 75,059.45/x
  3. Step 3: Cross multiply
    135,485.04x = 186,969.22 × 75,059.45
  4. Step 4: Simplify right side
    135,485.04x = 14,033,806,820.13
  5. Step 5: Solve for x
    x = 14,033,806,820.13/135,485.04
  6. Step 6: Final answer
    x = 103,581.97

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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.