Home / 131,284.80-180,986.40-93,441.60

Finding the Fourth Proportional to 131,284.80, 180,986.40 and 93,441.60

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Solution

The fourth proportional to 131,284.80, 180,986.40 and 93,441.60 is: 128,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,284.80 : 180,986.40 = 93,441.60 : x
  2. Step 2: Convert to fraction form
    131,284.80/180,986.40 = 93,441.60/x
  3. Step 3: Cross multiply
    131,284.80x = 180,986.40 × 93,441.60
  4. Step 4: Simplify right side
    131,284.80x = 16,911,658,794.24
  5. Step 5: Solve for x
    x = 16,911,658,794.24/131,284.80
  6. Step 6: Final answer
    x = 128,816.58

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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.