Home / 87,464.20-130,904.70-76,966.60

Finding the Fourth Proportional to 87,464.20, 130,904.70 and 76,966.60

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Solution

The fourth proportional to 87,464.20, 130,904.70 and 76,966.60 is: 115,193.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,464.20 : 130,904.70 = 76,966.60 : x
  2. Step 2: Convert to fraction form
    87,464.20/130,904.70 = 76,966.60/x
  3. Step 3: Cross multiply
    87,464.20x = 130,904.70 × 76,966.60
  4. Step 4: Simplify right side
    87,464.20x = 10,075,289,683.02
  5. Step 5: Solve for x
    x = 10,075,289,683.02/87,464.20
  6. Step 6: Final answer
    x = 115,193.30

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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.