Home / 147,412.71-203,427.86-83,749.14

Finding the Fourth Proportional to 147,412.71, 203,427.86 and 83,749.14

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Solution

The fourth proportional to 147,412.71, 203,427.86 and 83,749.14 is: 115,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,412.71 : 203,427.86 = 83,749.14 : x
  2. Step 2: Convert to fraction form
    147,412.71/203,427.86 = 83,749.14/x
  3. Step 3: Cross multiply
    147,412.71x = 203,427.86 × 83,749.14
  4. Step 4: Simplify right side
    147,412.71x = 17,036,907,908.29
  5. Step 5: Solve for x
    x = 17,036,907,908.29/147,412.71
  6. Step 6: Final answer
    x = 115,572.86

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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.