Home / 165,749.80-248,430.30-86,823.40

Finding the Fourth Proportional to 165,749.80, 248,430.30 and 86,823.40

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Solution

The fourth proportional to 165,749.80, 248,430.30 and 86,823.40 is: 130,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,749.80 : 248,430.30 = 86,823.40 : x
  2. Step 2: Convert to fraction form
    165,749.80/248,430.30 = 86,823.40/x
  3. Step 3: Cross multiply
    165,749.80x = 248,430.30 × 86,823.40
  4. Step 4: Simplify right side
    165,749.80x = 21,569,563,309.02
  5. Step 5: Solve for x
    x = 21,569,563,309.02/165,749.80
  6. Step 6: Final answer
    x = 130,133.27

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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.