Home / 147,385.63-203,400.48-83,736.64

Finding the Fourth Proportional to 147,385.63, 203,400.48 and 83,736.64

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Solution

The fourth proportional to 147,385.63, 203,400.48 and 83,736.64 is: 115,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,385.63 : 203,400.48 = 83,736.64 : x
  2. Step 2: Convert to fraction form
    147,385.63/203,400.48 = 83,736.64/x
  3. Step 3: Cross multiply
    147,385.63x = 203,400.48 × 83,736.64
  4. Step 4: Simplify right side
    147,385.63x = 17,032,072,769.59
  5. Step 5: Solve for x
    x = 17,032,072,769.59/147,385.63
  6. Step 6: Final answer
    x = 115,561.28

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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.