Home / 147,405.86-203,394.58-86,971.94

Finding the Fourth Proportional to 147,405.86, 203,394.58 and 86,971.94

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Solution

The fourth proportional to 147,405.86, 203,394.58 and 86,971.94 is: 120,006.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,405.86 : 203,394.58 = 86,971.94 : x
  2. Step 2: Convert to fraction form
    147,405.86/203,394.58 = 86,971.94/x
  3. Step 3: Cross multiply
    147,405.86x = 203,394.58 × 86,971.94
  4. Step 4: Simplify right side
    147,405.86x = 17,689,619,973.68
  5. Step 5: Solve for x
    x = 17,689,619,973.68/147,405.86
  6. Step 6: Final answer
    x = 120,006.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.