Home / 142,360.56-196,477.08-81,929.96

Finding the Fourth Proportional to 142,360.56, 196,477.08 and 81,929.96

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Solution

The fourth proportional to 142,360.56, 196,477.08 and 81,929.96 is: 113,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,360.56 : 196,477.08 = 81,929.96 : x
  2. Step 2: Convert to fraction form
    142,360.56/196,477.08 = 81,929.96/x
  3. Step 3: Cross multiply
    142,360.56x = 196,477.08 × 81,929.96
  4. Step 4: Simplify right side
    142,360.56x = 16,097,359,305.32
  5. Step 5: Solve for x
    x = 16,097,359,305.32/142,360.56
  6. Step 6: Final answer
    x = 113,074.57

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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.