Home / 147,412.50-203,429.07-80,344.50

Finding the Fourth Proportional to 147,412.50, 203,429.07 and 80,344.50

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Solution

The fourth proportional to 147,412.50, 203,429.07 and 80,344.50 is: 110,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,412.50 : 203,429.07 = 80,344.50 : x
  2. Step 2: Convert to fraction form
    147,412.50/203,429.07 = 80,344.50/x
  3. Step 3: Cross multiply
    147,412.50x = 203,429.07 × 80,344.50
  4. Step 4: Simplify right side
    147,412.50x = 16,344,406,914.62
  5. Step 5: Solve for x
    x = 16,344,406,914.62/147,412.50
  6. Step 6: Final answer
    x = 110,875.31

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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.