Home / 159,185.72-219,656.36-107,615.05

Finding the Fourth Proportional to 159,185.72, 219,656.36 and 107,615.05

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Solution

The fourth proportional to 159,185.72, 219,656.36 and 107,615.05 is: 148,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,185.72 : 219,656.36 = 107,615.05 : x
  2. Step 2: Convert to fraction form
    159,185.72/219,656.36 = 107,615.05/x
  3. Step 3: Cross multiply
    159,185.72x = 219,656.36 × 107,615.05
  4. Step 4: Simplify right side
    159,185.72x = 23,638,329,278.78
  5. Step 5: Solve for x
    x = 23,638,329,278.78/159,185.72
  6. Step 6: Final answer
    x = 148,495.29

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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.