Home / 100,452.04-150,318.30-86,989.84

Finding the Fourth Proportional to 100,452.04, 150,318.30 and 86,989.84

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Solution

The fourth proportional to 100,452.04, 150,318.30 and 86,989.84 is: 130,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,452.04 : 150,318.30 = 86,989.84 : x
  2. Step 2: Convert to fraction form
    100,452.04/150,318.30 = 86,989.84/x
  3. Step 3: Cross multiply
    100,452.04x = 150,318.30 × 86,989.84
  4. Step 4: Simplify right side
    100,452.04x = 13,076,164,866.07
  5. Step 5: Solve for x
    x = 13,076,164,866.07/100,452.04
  6. Step 6: Final answer
    x = 130,173.21

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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.