Home / 137,333.28-189,549.36-83,635.68

Finding the Fourth Proportional to 137,333.28, 189,549.36 and 83,635.68

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Solution

The fourth proportional to 137,333.28, 189,549.36 and 83,635.68 is: 115,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,333.28 : 189,549.36 = 83,635.68 : x
  2. Step 2: Convert to fraction form
    137,333.28/189,549.36 = 83,635.68/x
  3. Step 3: Cross multiply
    137,333.28x = 189,549.36 × 83,635.68
  4. Step 4: Simplify right side
    137,333.28x = 15,853,089,617.16
  5. Step 5: Solve for x
    x = 15,853,089,617.16/137,333.28
  6. Step 6: Final answer
    x = 115,435.16

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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.