Home / 185,009.47-255,313.85-100,126.53

Finding the Fourth Proportional to 185,009.47, 255,313.85 and 100,126.53

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Solution

The fourth proportional to 185,009.47, 255,313.85 and 100,126.53 is: 138,175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,009.47 : 255,313.85 = 100,126.53 : x
  2. Step 2: Convert to fraction form
    185,009.47/255,313.85 = 100,126.53/x
  3. Step 3: Cross multiply
    185,009.47x = 255,313.85 × 100,126.53
  4. Step 4: Simplify right side
    185,009.47x = 25,563,689,360.81
  5. Step 5: Solve for x
    x = 25,563,689,360.81/185,009.47
  6. Step 6: Final answer
    x = 138,175.03

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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.