Home / 170,070.40-255,105.60-57,780.10

Finding the Fourth Proportional to 170,070.40, 255,105.60 and 57,780.10

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Solution

The fourth proportional to 170,070.40, 255,105.60 and 57,780.10 is: 86,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,070.40 : 255,105.60 = 57,780.10 : x
  2. Step 2: Convert to fraction form
    170,070.40/255,105.60 = 57,780.10/x
  3. Step 3: Cross multiply
    170,070.40x = 255,105.60 × 57,780.10
  4. Step 4: Simplify right side
    170,070.40x = 14,740,027,078.56
  5. Step 5: Solve for x
    x = 14,740,027,078.56/170,070.40
  6. Step 6: Final answer
    x = 86,670.15

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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.