Home / 142,165.14-213,321.51-57,987.06

Finding the Fourth Proportional to 142,165.14, 213,321.51 and 57,987.06

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Solution

The fourth proportional to 142,165.14, 213,321.51 and 57,987.06 is: 87,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,165.14 : 213,321.51 = 57,987.06 : x
  2. Step 2: Convert to fraction form
    142,165.14/213,321.51 = 57,987.06/x
  3. Step 3: Cross multiply
    142,165.14x = 213,321.51 × 57,987.06
  4. Step 4: Simplify right side
    142,165.14x = 12,369,887,199.66
  5. Step 5: Solve for x
    x = 12,369,887,199.66/142,165.14
  6. Step 6: Final answer
    x = 87,010.69

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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.