Home / 138,081,252.96-190,551,936.24-76,201,581.60

Finding the Fourth Proportional to 138,081,252.96, 190,551,936.24 and 76,201,581.60

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Solution

The fourth proportional to 138,081,252.96, 190,551,936.24 and 76,201,581.60 is: 105,158,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,081,252.96 : 190,551,936.24 = 76,201,581.60 : x
  2. Step 2: Convert to fraction form
    138,081,252.96/190,551,936.24 = 76,201,581.60/x
  3. Step 3: Cross multiply
    138,081,252.96x = 190,551,936.24 × 76,201,581.60
  4. Step 4: Simplify right side
    138,081,252.96x = 14,520,358,918,430,356
  5. Step 5: Solve for x
    x = 14,520,358,918,430,356/138,081,252.96
  6. Step 6: Final answer
    x = 105,158,076.18

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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.