Home / 136,733.82-188,693.10-76,307.01

Finding the Fourth Proportional to 136,733.82, 188,693.10 and 76,307.01

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Solution

The fourth proportional to 136,733.82, 188,693.10 and 76,307.01 is: 105,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,733.82 : 188,693.10 = 76,307.01 : x
  2. Step 2: Convert to fraction form
    136,733.82/188,693.10 = 76,307.01/x
  3. Step 3: Cross multiply
    136,733.82x = 188,693.10 × 76,307.01
  4. Step 4: Simplify right side
    136,733.82x = 14,398,606,268.63
  5. Step 5: Solve for x
    x = 14,398,606,268.63/136,733.82
  6. Step 6: Final answer
    x = 105,303.91

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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.