Home / 163,402.56-245,313.74-125,986.40

Finding the Fourth Proportional to 163,402.56, 245,313.74 and 125,986.40

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Solution

The fourth proportional to 163,402.56, 245,313.74 and 125,986.40 is: 189,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,402.56 : 245,313.74 = 125,986.40 : x
  2. Step 2: Convert to fraction form
    163,402.56/245,313.74 = 125,986.40/x
  3. Step 3: Cross multiply
    163,402.56x = 245,313.74 × 125,986.40
  4. Step 4: Simplify right side
    163,402.56x = 30,906,194,973.14
  5. Step 5: Solve for x
    x = 30,906,194,973.14/163,402.56
  6. Step 6: Final answer
    x = 189,141.44

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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.