Home / 190,543.38-285,925.77-85,362.35

Finding the Fourth Proportional to 190,543.38, 285,925.77 and 85,362.35

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Solution

The fourth proportional to 190,543.38, 285,925.77 and 85,362.35 is: 128,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,543.38 : 285,925.77 = 85,362.35 : x
  2. Step 2: Convert to fraction form
    190,543.38/285,925.77 = 85,362.35/x
  3. Step 3: Cross multiply
    190,543.38x = 285,925.77 × 85,362.35
  4. Step 4: Simplify right side
    190,543.38x = 24,407,295,652.76
  5. Step 5: Solve for x
    x = 24,407,295,652.76/190,543.38
  6. Step 6: Final answer
    x = 128,093.12

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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.