Home / 135,242.48-186,571.74-87,511.24

Finding the Fourth Proportional to 135,242.48, 186,571.74 and 87,511.24

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Solution

The fourth proportional to 135,242.48, 186,571.74 and 87,511.24 is: 120,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,242.48 : 186,571.74 = 87,511.24 : x
  2. Step 2: Convert to fraction form
    135,242.48/186,571.74 = 87,511.24/x
  3. Step 3: Cross multiply
    135,242.48x = 186,571.74 × 87,511.24
  4. Step 4: Simplify right side
    135,242.48x = 16,327,124,316.36
  5. Step 5: Solve for x
    x = 16,327,124,316.36/135,242.48
  6. Step 6: Final answer
    x = 120,724.82

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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.