Home / 190,587.12-285,902.76-72,346.80

Finding the Fourth Proportional to 190,587.12, 285,902.76 and 72,346.80

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Solution

The fourth proportional to 190,587.12, 285,902.76 and 72,346.80 is: 108,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,587.12 : 285,902.76 = 72,346.80 : x
  2. Step 2: Convert to fraction form
    190,587.12/285,902.76 = 72,346.80/x
  3. Step 3: Cross multiply
    190,587.12x = 285,902.76 × 72,346.80
  4. Step 4: Simplify right side
    190,587.12x = 20,684,149,797.17
  5. Step 5: Solve for x
    x = 20,684,149,797.17/190,587.12
  6. Step 6: Final answer
    x = 108,528.58

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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.