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Finding the Fourth Proportional to 131,637.60, 197,254.80 and 98,200.80

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Solution

The fourth proportional to 131,637.60, 197,254.80 and 98,200.80 is: 147,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,637.60 : 197,254.80 = 98,200.80 : x
  2. Step 2: Convert to fraction form
    131,637.60/197,254.80 = 98,200.80/x
  3. Step 3: Cross multiply
    131,637.60x = 197,254.80 × 98,200.80
  4. Step 4: Simplify right side
    131,637.60x = 19,370,579,163.84
  5. Step 5: Solve for x
    x = 19,370,579,163.84/131,637.60
  6. Step 6: Final answer
    x = 147,150.81

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1.5x scale

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.