Home / 255,089.20-382,674.30-86,625.40

Finding the Fourth Proportional to 255,089.20, 382,674.30 and 86,625.40

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Solution

The fourth proportional to 255,089.20, 382,674.30 and 86,625.40 is: 129,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,089.20 : 382,674.30 = 86,625.40 : x
  2. Step 2: Convert to fraction form
    255,089.20/382,674.30 = 86,625.40/x
  3. Step 3: Cross multiply
    255,089.20x = 382,674.30 × 86,625.40
  4. Step 4: Simplify right side
    255,089.20x = 33,149,314,307.22
  5. Step 5: Solve for x
    x = 33,149,314,307.22/255,089.20
  6. Step 6: Final answer
    x = 129,951.85

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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.