Home / 112,716.48-169,076.64-42,628.80

Finding the Fourth Proportional to 112,716.48, 169,076.64 and 42,628.80

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Solution

The fourth proportional to 112,716.48, 169,076.64 and 42,628.80 is: 63,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,716.48 : 169,076.64 = 42,628.80 : x
  2. Step 2: Convert to fraction form
    112,716.48/169,076.64 = 42,628.80/x
  3. Step 3: Cross multiply
    112,716.48x = 169,076.64 × 42,628.80
  4. Step 4: Simplify right side
    112,716.48x = 7,207,534,271.23
  5. Step 5: Solve for x
    x = 7,207,534,271.23/112,716.48
  6. Step 6: Final answer
    x = 63,943.93

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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.