Home / 142,298.09-213,566.87-71,199.39

Finding the Fourth Proportional to 142,298.09, 213,566.87 and 71,199.39

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Solution

The fourth proportional to 142,298.09, 213,566.87 and 71,199.39 is: 106,859.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,298.09 : 213,566.87 = 71,199.39 : x
  2. Step 2: Convert to fraction form
    142,298.09/213,566.87 = 71,199.39/x
  3. Step 3: Cross multiply
    142,298.09x = 213,566.87 × 71,199.39
  4. Step 4: Simplify right side
    142,298.09x = 15,205,831,046.21
  5. Step 5: Solve for x
    x = 15,205,831,046.21/142,298.09
  6. Step 6: Final answer
    x = 106,859.00

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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.