Home / 136,695.60-188,639.37-76,266.36

Finding the Fourth Proportional to 136,695.60, 188,639.37 and 76,266.36

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Solution

The fourth proportional to 136,695.60, 188,639.37 and 76,266.36 is: 105,247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,695.60 : 188,639.37 = 76,266.36 : x
  2. Step 2: Convert to fraction form
    136,695.60/188,639.37 = 76,266.36/x
  3. Step 3: Cross multiply
    136,695.60x = 188,639.37 × 76,266.36
  4. Step 4: Simplify right side
    136,695.60x = 14,386,838,102.59
  5. Step 5: Solve for x
    x = 14,386,838,102.59/136,695.60
  6. Step 6: Final answer
    x = 105,247.27

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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.