Home / 142,157.14-213,309.51-57,979.06

Finding the Fourth Proportional to 142,157.14, 213,309.51 and 57,979.06

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Solution

The fourth proportional to 142,157.14, 213,309.51 and 57,979.06 is: 86,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,157.14 : 213,309.51 = 57,979.06 : x
  2. Step 2: Convert to fraction form
    142,157.14/213,309.51 = 57,979.06/x
  3. Step 3: Cross multiply
    142,157.14x = 213,309.51 × 57,979.06
  4. Step 4: Simplify right side
    142,157.14x = 12,367,484,878.86
  5. Step 5: Solve for x
    x = 12,367,484,878.86/142,157.14
  6. Step 6: Final answer
    x = 86,998.69

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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.