Home / 159,112.11-219,567.20-87,495.15

Finding the Fourth Proportional to 159,112.11, 219,567.20 and 87,495.15

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Solution

The fourth proportional to 159,112.11, 219,567.20 and 87,495.15 is: 120,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,112.11 : 219,567.20 = 87,495.15 : x
  2. Step 2: Convert to fraction form
    159,112.11/219,567.20 = 87,495.15/x
  3. Step 3: Cross multiply
    159,112.11x = 219,567.20 × 87,495.15
  4. Step 4: Simplify right side
    159,112.11x = 19,211,064,661.60
  5. Step 5: Solve for x
    x = 19,211,064,661.60/159,112.11
  6. Step 6: Final answer
    x = 120,739.17

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1.5x scale

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.