Home / 147,820.96-203,985.60-84,152.80

Finding the Fourth Proportional to 147,820.96, 203,985.60 and 84,152.80

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Solution

The fourth proportional to 147,820.96, 203,985.60 and 84,152.80 is: 116,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,820.96 : 203,985.60 = 84,152.80 : x
  2. Step 2: Convert to fraction form
    147,820.96/203,985.60 = 84,152.80/x
  3. Step 3: Cross multiply
    147,820.96x = 203,985.60 × 84,152.80
  4. Step 4: Simplify right side
    147,820.96x = 17,165,959,399.68
  5. Step 5: Solve for x
    x = 17,165,959,399.68/147,820.96
  6. Step 6: Final answer
    x = 116,126.69

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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.