Home / 163,539.80-245,180.10-89,667.80

Finding the Fourth Proportional to 163,539.80, 245,180.10 and 89,667.80

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Solution

The fourth proportional to 163,539.80, 245,180.10 and 89,667.80 is: 134,430.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,539.80 : 245,180.10 = 89,667.80 : x
  2. Step 2: Convert to fraction form
    163,539.80/245,180.10 = 89,667.80/x
  3. Step 3: Cross multiply
    163,539.80x = 245,180.10 × 89,667.80
  4. Step 4: Simplify right side
    163,539.80x = 21,984,760,170.78
  5. Step 5: Solve for x
    x = 21,984,760,170.78/163,539.80
  6. Step 6: Final answer
    x = 134,430.64

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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.