Home / 190,160.88-285,066.08-90,368.40

Finding the Fourth Proportional to 190,160.88, 285,066.08 and 90,368.40

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Solution

The fourth proportional to 190,160.88, 285,066.08 and 90,368.40 is: 135,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,160.88 : 285,066.08 = 90,368.40 : x
  2. Step 2: Convert to fraction form
    190,160.88/285,066.08 = 90,368.40/x
  3. Step 3: Cross multiply
    190,160.88x = 285,066.08 × 90,368.40
  4. Step 4: Simplify right side
    190,160.88x = 25,760,965,543.87
  5. Step 5: Solve for x
    x = 25,760,965,543.87/190,160.88
  6. Step 6: Final answer
    x = 135,469.32

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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.