Home / 163,917.40-245,876.10-53,109.40

Finding the Fourth Proportional to 163,917.40, 245,876.10 and 53,109.40

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Solution

The fourth proportional to 163,917.40, 245,876.10 and 53,109.40 is: 79,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,917.40 : 245,876.10 = 53,109.40 : x
  2. Step 2: Convert to fraction form
    163,917.40/245,876.10 = 53,109.40/x
  3. Step 3: Cross multiply
    163,917.40x = 245,876.10 × 53,109.40
  4. Step 4: Simplify right side
    163,917.40x = 13,058,332,145.34
  5. Step 5: Solve for x
    x = 13,058,332,145.34/163,917.40
  6. Step 6: Final answer
    x = 79,664.10

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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.