Home / 136,434.59-188,280.00-76,007.39

Finding the Fourth Proportional to 136,434.59, 188,280.00 and 76,007.39

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Solution

The fourth proportional to 136,434.59, 188,280.00 and 76,007.39 is: 104,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,434.59 : 188,280.00 = 76,007.39 : x
  2. Step 2: Convert to fraction form
    136,434.59/188,280.00 = 76,007.39/x
  3. Step 3: Cross multiply
    136,434.59x = 188,280.00 × 76,007.39
  4. Step 4: Simplify right side
    136,434.59x = 14,310,671,927.12
  5. Step 5: Solve for x
    x = 14,310,671,927.12/136,434.59
  6. Step 6: Final answer
    x = 104,890.35

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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.