Home / 149,292.80-206,066.40-98,342.72

Finding the Fourth Proportional to 149,292.80, 206,066.40 and 98,342.72

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Solution

The fourth proportional to 149,292.80, 206,066.40 and 98,342.72 is: 135,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,292.80 : 206,066.40 = 98,342.72 : x
  2. Step 2: Convert to fraction form
    149,292.80/206,066.40 = 98,342.72/x
  3. Step 3: Cross multiply
    149,292.80x = 206,066.40 × 98,342.72
  4. Step 4: Simplify right side
    149,292.80x = 20,265,130,276.61
  5. Step 5: Solve for x
    x = 20,265,130,276.61/149,292.80
  6. Step 6: Final answer
    x = 135,740.84

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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.