Home / 142,173.90-213,383.57-57,980.48

Finding the Fourth Proportional to 142,173.90, 213,383.57 and 57,980.48

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Solution

The fourth proportional to 142,173.90, 213,383.57 and 57,980.48 is: 87,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,173.90 : 213,383.57 = 57,980.48 : x
  2. Step 2: Convert to fraction form
    142,173.90/213,383.57 = 57,980.48/x
  3. Step 3: Cross multiply
    142,173.90x = 213,383.57 × 57,980.48
  4. Step 4: Simplify right side
    142,173.90x = 12,372,080,455.89
  5. Step 5: Solve for x
    x = 12,372,080,455.89/142,173.90
  6. Step 6: Final answer
    x = 87,020.76

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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.