Home / 185,068.45-255,395.28-100,185.51

Finding the Fourth Proportional to 185,068.45, 255,395.28 and 100,185.51

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Solution

The fourth proportional to 185,068.45, 255,395.28 and 100,185.51 is: 138,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,068.45 : 255,395.28 = 100,185.51 : x
  2. Step 2: Convert to fraction form
    185,068.45/255,395.28 = 100,185.51/x
  3. Step 3: Cross multiply
    185,068.45x = 255,395.28 × 100,185.51
  4. Step 4: Simplify right side
    185,068.45x = 25,586,906,148.21
  5. Step 5: Solve for x
    x = 25,586,906,148.21/185,068.45
  6. Step 6: Final answer
    x = 138,256.45

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1.5x scale

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.