Home / 112,955.70-169,343.63-55,989.51

Finding the Fourth Proportional to 112,955.70, 169,343.63 and 55,989.51

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Solution

The fourth proportional to 112,955.70, 169,343.63 and 55,989.51 is: 83,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,955.70 : 169,343.63 = 55,989.51 : x
  2. Step 2: Convert to fraction form
    112,955.70/169,343.63 = 55,989.51/x
  3. Step 3: Cross multiply
    112,955.70x = 169,343.63 × 55,989.51
  4. Step 4: Simplify right side
    112,955.70x = 9,481,465,738.66
  5. Step 5: Solve for x
    x = 9,481,465,738.66/112,955.70
  6. Step 6: Final answer
    x = 83,939.69

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1.5x scale

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.