Home / 128,062.93-176,562.57-105,007.81

Finding the Fourth Proportional to 128,062.93, 176,562.57 and 105,007.81

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Solution

The fourth proportional to 128,062.93, 176,562.57 and 105,007.81 is: 144,776.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,062.93 : 176,562.57 = 105,007.81 : x
  2. Step 2: Convert to fraction form
    128,062.93/176,562.57 = 105,007.81/x
  3. Step 3: Cross multiply
    128,062.93x = 176,562.57 × 105,007.81
  4. Step 4: Simplify right side
    128,062.93x = 18,540,448,278.63
  5. Step 5: Solve for x
    x = 18,540,448,278.63/128,062.93
  6. Step 6: Final answer
    x = 144,776.07

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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.