Home / 112,117.80-155,390.43-110,018.28

Finding the Fourth Proportional to 112,117.80, 155,390.43 and 110,018.28

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Solution

The fourth proportional to 112,117.80, 155,390.43 and 110,018.28 is: 152,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,117.80 : 155,390.43 = 110,018.28 : x
  2. Step 2: Convert to fraction form
    112,117.80/155,390.43 = 110,018.28/x
  3. Step 3: Cross multiply
    112,117.80x = 155,390.43 × 110,018.28
  4. Step 4: Simplify right side
    112,117.80x = 17,095,787,837.06
  5. Step 5: Solve for x
    x = 17,095,787,837.06/112,117.80
  6. Step 6: Final answer
    x = 152,480.59

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.