Home / 134,973.20-202,459.80-90,736.40

Finding the Fourth Proportional to 134,973.20, 202,459.80 and 90,736.40

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Solution

The fourth proportional to 134,973.20, 202,459.80 and 90,736.40 is: 136,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,973.20 : 202,459.80 = 90,736.40 : x
  2. Step 2: Convert to fraction form
    134,973.20/202,459.80 = 90,736.40/x
  3. Step 3: Cross multiply
    134,973.20x = 202,459.80 × 90,736.40
  4. Step 4: Simplify right side
    134,973.20x = 18,370,473,396.72
  5. Step 5: Solve for x
    x = 18,370,473,396.72/134,973.20
  6. Step 6: Final answer
    x = 136,104.60

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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.