Home / 147,943.53-204,157.98-83,412.20

Finding the Fourth Proportional to 147,943.53, 204,157.98 and 83,412.20

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Solution

The fourth proportional to 147,943.53, 204,157.98 and 83,412.20 is: 115,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,943.53 : 204,157.98 = 83,412.20 : x
  2. Step 2: Convert to fraction form
    147,943.53/204,157.98 = 83,412.20/x
  3. Step 3: Cross multiply
    147,943.53x = 204,157.98 × 83,412.20
  4. Step 4: Simplify right side
    147,943.53x = 17,029,265,238.57
  5. Step 5: Solve for x
    x = 17,029,265,238.57/147,943.53
  6. Step 6: Final answer
    x = 115,106.52

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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.