Home / 158,752.60-219,078.34-87,132.81

Finding the Fourth Proportional to 158,752.60, 219,078.34 and 87,132.81

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Solution

The fourth proportional to 158,752.60, 219,078.34 and 87,132.81 is: 120,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,752.60 : 219,078.34 = 87,132.81 : x
  2. Step 2: Convert to fraction form
    158,752.60/219,078.34 = 87,132.81/x
  3. Step 3: Cross multiply
    158,752.60x = 219,078.34 × 87,132.81
  4. Step 4: Simplify right side
    158,752.60x = 19,088,911,374.34
  5. Step 5: Solve for x
    x = 19,088,911,374.34/158,752.60
  6. Step 6: Final answer
    x = 120,243.14

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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.