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Finding the Fourth Proportional to 136,888.06, 188,904.42 and 75,634.07

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Solution

The fourth proportional to 136,888.06, 188,904.42 and 75,634.07 is: 104,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,888.06 : 188,904.42 = 75,634.07 : x
  2. Step 2: Convert to fraction form
    136,888.06/188,904.42 = 75,634.07/x
  3. Step 3: Cross multiply
    136,888.06x = 188,904.42 × 75,634.07
  4. Step 4: Simplify right side
    136,888.06x = 14,287,609,127.63
  5. Step 5: Solve for x
    x = 14,287,609,127.63/136,888.06
  6. Step 6: Final answer
    x = 104,374.40

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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.