Home / 86,975.20-130,171.20-76,477.60

Finding the Fourth Proportional to 86,975.20, 130,171.20 and 76,477.60

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Solution

The fourth proportional to 86,975.20, 130,171.20 and 76,477.60 is: 114,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,975.20 : 130,171.20 = 76,477.60 : x
  2. Step 2: Convert to fraction form
    86,975.20/130,171.20 = 76,477.60/x
  3. Step 3: Cross multiply
    86,975.20x = 130,171.20 × 76,477.60
  4. Step 4: Simplify right side
    86,975.20x = 9,955,180,965.12
  5. Step 5: Solve for x
    x = 9,955,180,965.12/86,975.20
  6. Step 6: Final answer
    x = 114,460.00

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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.