Home / 137,965.82-190,353.58-77,530.10

Finding the Fourth Proportional to 137,965.82, 190,353.58 and 77,530.10

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Solution

The fourth proportional to 137,965.82, 190,353.58 and 77,530.10 is: 106,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,965.82 : 190,353.58 = 77,530.10 : x
  2. Step 2: Convert to fraction form
    137,965.82/190,353.58 = 77,530.10/x
  3. Step 3: Cross multiply
    137,965.82x = 190,353.58 × 77,530.10
  4. Step 4: Simplify right side
    137,965.82x = 14,758,130,947.16
  5. Step 5: Solve for x
    x = 14,758,130,947.16/137,965.82
  6. Step 6: Final answer
    x = 106,969.48

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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.