Home / 147,586.75-203,685.40-90,259.60

Finding the Fourth Proportional to 147,586.75, 203,685.40 and 90,259.60

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Solution

The fourth proportional to 147,586.75, 203,685.40 and 90,259.60 is: 124,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,586.75 : 203,685.40 = 90,259.60 : x
  2. Step 2: Convert to fraction form
    147,586.75/203,685.40 = 90,259.60/x
  3. Step 3: Cross multiply
    147,586.75x = 203,685.40 × 90,259.60
  4. Step 4: Simplify right side
    147,586.75x = 18,384,562,729.84
  5. Step 5: Solve for x
    x = 18,384,562,729.84/147,586.75
  6. Step 6: Final answer
    x = 124,567.84

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1.5x scale

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.