Home / 147,342.70-203,357.31-86,928.13

Finding the Fourth Proportional to 147,342.70, 203,357.31 and 86,928.13

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Solution

The fourth proportional to 147,342.70, 203,357.31 and 86,928.13 is: 119,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,342.70 : 203,357.31 = 86,928.13 : x
  2. Step 2: Convert to fraction form
    147,342.70/203,357.31 = 86,928.13/x
  3. Step 3: Cross multiply
    147,342.70x = 203,357.31 × 86,928.13
  4. Step 4: Simplify right side
    147,342.70x = 17,677,470,680.13
  5. Step 5: Solve for x
    x = 17,677,470,680.13/147,342.70
  6. Step 6: Final answer
    x = 119,975.21

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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.