Home / 119,410.76-164,784.66-81,683.72

Finding the Fourth Proportional to 119,410.76, 164,784.66 and 81,683.72

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Solution

The fourth proportional to 119,410.76, 164,784.66 and 81,683.72 is: 112,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,410.76 : 164,784.66 = 81,683.72 : x
  2. Step 2: Convert to fraction form
    119,410.76/164,784.66 = 81,683.72/x
  3. Step 3: Cross multiply
    119,410.76x = 164,784.66 × 81,683.72
  4. Step 4: Simplify right side
    119,410.76x = 13,460,224,027.74
  5. Step 5: Solve for x
    x = 13,460,224,027.74/119,410.76
  6. Step 6: Final answer
    x = 112,722.04

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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.