Home / 147,120.47-203,020.10-83,470.26

Finding the Fourth Proportional to 147,120.47, 203,020.10 and 83,470.26

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Solution

The fourth proportional to 147,120.47, 203,020.10 and 83,470.26 is: 115,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,120.47 : 203,020.10 = 83,470.26 : x
  2. Step 2: Convert to fraction form
    147,120.47/203,020.10 = 83,470.26/x
  3. Step 3: Cross multiply
    147,120.47x = 203,020.10 × 83,470.26
  4. Step 4: Simplify right side
    147,120.47x = 16,946,140,532.23
  5. Step 5: Solve for x
    x = 16,946,140,532.23/147,120.47
  6. Step 6: Final answer
    x = 115,185.47

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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.