Home / 147,420.36-203,445.54-83,768.94

Finding the Fourth Proportional to 147,420.36, 203,445.54 and 83,768.94

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Solution

The fourth proportional to 147,420.36, 203,445.54 and 83,768.94 is: 115,604.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,420.36 : 203,445.54 = 83,768.94 : x
  2. Step 2: Convert to fraction form
    147,420.36/203,445.54 = 83,768.94/x
  3. Step 3: Cross multiply
    147,420.36x = 203,445.54 × 83,768.94
  4. Step 4: Simplify right side
    147,420.36x = 17,042,417,233.53
  5. Step 5: Solve for x
    x = 17,042,417,233.53/147,420.36
  6. Step 6: Final answer
    x = 115,604.23

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1.5x scale

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.