Home / 159,433.21-219,985.59-121,182.58

Finding the Fourth Proportional to 159,433.21, 219,985.59 and 121,182.58

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Solution

The fourth proportional to 159,433.21, 219,985.59 and 121,182.58 is: 167,207.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,433.21 : 219,985.59 = 121,182.58 : x
  2. Step 2: Convert to fraction form
    159,433.21/219,985.59 = 121,182.58/x
  3. Step 3: Cross multiply
    159,433.21x = 219,985.59 × 121,182.58
  4. Step 4: Simplify right side
    159,433.21x = 26,658,421,359.02
  5. Step 5: Solve for x
    x = 26,658,421,359.02/159,433.21
  6. Step 6: Final answer
    x = 167,207.46

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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.