Home / 136,886.99-188,902.02-76,458.51

Finding the Fourth Proportional to 136,886.99, 188,902.02 and 76,458.51

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Solution

The fourth proportional to 136,886.99, 188,902.02 and 76,458.51 is: 105,511.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,886.99 : 188,902.02 = 76,458.51 : x
  2. Step 2: Convert to fraction form
    136,886.99/188,902.02 = 76,458.51/x
  3. Step 3: Cross multiply
    136,886.99x = 188,902.02 × 76,458.51
  4. Step 4: Simplify right side
    136,886.99x = 14,443,166,985.19
  5. Step 5: Solve for x
    x = 14,443,166,985.19/136,886.99
  6. Step 6: Final answer
    x = 105,511.62

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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.