Home / 96,028.80-144,043.20-86,211.60

Finding the Fourth Proportional to 96,028.80, 144,043.20 and 86,211.60

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Solution

The fourth proportional to 96,028.80, 144,043.20 and 86,211.60 is: 129,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,028.80 : 144,043.20 = 86,211.60 : x
  2. Step 2: Convert to fraction form
    96,028.80/144,043.20 = 86,211.60/x
  3. Step 3: Cross multiply
    96,028.80x = 144,043.20 × 86,211.60
  4. Step 4: Simplify right side
    96,028.80x = 12,418,194,741.12
  5. Step 5: Solve for x
    x = 12,418,194,741.12/96,028.80
  6. Step 6: Final answer
    x = 129,317.40

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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.