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Finding the Fourth Proportional to 158,520.20, 218,751.30 and 94,820.36

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Solution

The fourth proportional to 158,520.20, 218,751.30 and 94,820.36 is: 130,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,520.20 : 218,751.30 = 94,820.36 : x
  2. Step 2: Convert to fraction form
    158,520.20/218,751.30 = 94,820.36/x
  3. Step 3: Cross multiply
    158,520.20x = 218,751.30 × 94,820.36
  4. Step 4: Simplify right side
    158,520.20x = 20,742,077,016.47
  5. Step 5: Solve for x
    x = 20,742,077,016.47/158,520.20
  6. Step 6: Final answer
    x = 130,848.16

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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.