Home / 190,403.60-285,305.00-70,295.39

Finding the Fourth Proportional to 190,403.60, 285,305.00 and 70,295.39

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Solution

The fourth proportional to 190,403.60, 285,305.00 and 70,295.39 is: 105,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,403.60 : 285,305.00 = 70,295.39 : x
  2. Step 2: Convert to fraction form
    190,403.60/285,305.00 = 70,295.39/x
  3. Step 3: Cross multiply
    190,403.60x = 285,305.00 × 70,295.39
  4. Step 4: Simplify right side
    190,403.60x = 20,055,624,465.95
  5. Step 5: Solve for x
    x = 20,055,624,465.95/190,403.60
  6. Step 6: Final answer
    x = 105,332.17

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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.