Home / 190,306.08-285,465.60-90,414.72

Finding the Fourth Proportional to 190,306.08, 285,465.60 and 90,414.72

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Solution

The fourth proportional to 190,306.08, 285,465.60 and 90,414.72 is: 135,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,306.08 : 285,465.60 = 90,414.72 : x
  2. Step 2: Convert to fraction form
    190,306.08/285,465.60 = 90,414.72/x
  3. Step 3: Cross multiply
    190,306.08x = 285,465.60 × 90,414.72
  4. Step 4: Simplify right side
    190,306.08x = 25,810,292,293.63
  5. Step 5: Solve for x
    x = 25,810,292,293.63/190,306.08
  6. Step 6: Final answer
    x = 135,625.16

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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.