Home / 105,026.22-143,776.55-104,275.76

Finding the Fourth Proportional to 105,026.22, 143,776.55 and 104,275.76

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Solution

The fourth proportional to 105,026.22, 143,776.55 and 104,275.76 is: 142,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,026.22 : 143,776.55 = 104,275.76 : x
  2. Step 2: Convert to fraction form
    105,026.22/143,776.55 = 104,275.76/x
  3. Step 3: Cross multiply
    105,026.22x = 143,776.55 × 104,275.76
  4. Step 4: Simplify right side
    105,026.22x = 14,992,408,563.23
  5. Step 5: Solve for x
    x = 14,992,408,563.23/105,026.22
  6. Step 6: Final answer
    x = 142,749.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.