Home / 138,082.22-190,551.64-77,652.84

Finding the Fourth Proportional to 138,082.22, 190,551.64 and 77,652.84

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Solution

The fourth proportional to 138,082.22, 190,551.64 and 77,652.84 is: 107,159.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,082.22 : 190,551.64 = 77,652.84 : x
  2. Step 2: Convert to fraction form
    138,082.22/190,551.64 = 77,652.84/x
  3. Step 3: Cross multiply
    138,082.22x = 190,551.64 × 77,652.84
  4. Step 4: Simplify right side
    138,082.22x = 14,796,875,624.39
  5. Step 5: Solve for x
    x = 14,796,875,624.39/138,082.22
  6. Step 6: Final answer
    x = 107,159.89

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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.