Home / 147,546.51-203,568.02-87,138.53

Finding the Fourth Proportional to 147,546.51, 203,568.02 and 87,138.53

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Solution

The fourth proportional to 147,546.51, 203,568.02 and 87,138.53 is: 120,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,546.51 : 203,568.02 = 87,138.53 : x
  2. Step 2: Convert to fraction form
    147,546.51/203,568.02 = 87,138.53/x
  3. Step 3: Cross multiply
    147,546.51x = 203,568.02 × 87,138.53
  4. Step 4: Simplify right side
    147,546.51x = 17,738,618,017.81
  5. Step 5: Solve for x
    x = 17,738,618,017.81/147,546.51
  6. Step 6: Final answer
    x = 120,223.91

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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.