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Finding the Fourth Proportional to 95,873.60, 143,810.40 and 81,111.35

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Solution

The fourth proportional to 95,873.60, 143,810.40 and 81,111.35 is: 121,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,873.60 : 143,810.40 = 81,111.35 : x
  2. Step 2: Convert to fraction form
    95,873.60/143,810.40 = 81,111.35/x
  3. Step 3: Cross multiply
    95,873.60x = 143,810.40 × 81,111.35
  4. Step 4: Simplify right side
    95,873.60x = 11,664,655,688.04
  5. Step 5: Solve for x
    x = 11,664,655,688.04/95,873.60
  6. Step 6: Final answer
    x = 121,667.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.