Home / 190,332.41-285,500.64-77,983.79

Finding the Fourth Proportional to 190,332.41, 285,500.64 and 77,983.79

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Solution

The fourth proportional to 190,332.41, 285,500.64 and 77,983.79 is: 116,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,332.41 : 285,500.64 = 77,983.79 : x
  2. Step 2: Convert to fraction form
    190,332.41/285,500.64 = 77,983.79/x
  3. Step 3: Cross multiply
    190,332.41x = 285,500.64 × 77,983.79
  4. Step 4: Simplify right side
    190,332.41x = 22,264,421,954.63
  5. Step 5: Solve for x
    x = 22,264,421,954.63/190,332.41
  6. Step 6: Final answer
    x = 116,976.51

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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.