Home / 106,971.98-147,464.08-81,433.82

Finding the Fourth Proportional to 106,971.98, 147,464.08 and 81,433.82

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Solution

The fourth proportional to 106,971.98, 147,464.08 and 81,433.82 is: 112,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,971.98 : 147,464.08 = 81,433.82 : x
  2. Step 2: Convert to fraction form
    106,971.98/147,464.08 = 81,433.82/x
  3. Step 3: Cross multiply
    106,971.98x = 147,464.08 × 81,433.82
  4. Step 4: Simplify right side
    106,971.98x = 12,008,563,512.26
  5. Step 5: Solve for x
    x = 12,008,563,512.26/106,971.98
  6. Step 6: Final answer
    x = 112,258.97

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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.