Home / 136,541.70-188,433.36-76,112.34

Finding the Fourth Proportional to 136,541.70, 188,433.36 and 76,112.34

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Solution

The fourth proportional to 136,541.70, 188,433.36 and 76,112.34 is: 105,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,541.70 : 188,433.36 = 76,112.34 : x
  2. Step 2: Convert to fraction form
    136,541.70/188,433.36 = 76,112.34/x
  3. Step 3: Cross multiply
    136,541.70x = 188,433.36 × 76,112.34
  4. Step 4: Simplify right side
    136,541.70x = 14,342,103,963.66
  5. Step 5: Solve for x
    x = 14,342,103,963.66/136,541.70
  6. Step 6: Final answer
    x = 105,038.27

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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.