Home / 104,146.47-143,721.84-56,399.81

Finding the Fourth Proportional to 104,146.47, 143,721.84 and 56,399.81

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Solution

The fourth proportional to 104,146.47, 143,721.84 and 56,399.81 is: 77,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,146.47 : 143,721.84 = 56,399.81 : x
  2. Step 2: Convert to fraction form
    104,146.47/143,721.84 = 56,399.81/x
  3. Step 3: Cross multiply
    104,146.47x = 143,721.84 × 56,399.81
  4. Step 4: Simplify right side
    104,146.47x = 8,105,883,750.24
  5. Step 5: Solve for x
    x = 8,105,883,750.24/104,146.47
  6. Step 6: Final answer
    x = 77,831.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.