Home / 104,779.17-144,571.64-87,851.79

Finding the Fourth Proportional to 104,779.17, 144,571.64 and 87,851.79

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Solution

The fourth proportional to 104,779.17, 144,571.64 and 87,851.79 is: 121,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,779.17 : 144,571.64 = 87,851.79 : x
  2. Step 2: Convert to fraction form
    104,779.17/144,571.64 = 87,851.79/x
  3. Step 3: Cross multiply
    104,779.17x = 144,571.64 × 87,851.79
  4. Step 4: Simplify right side
    104,779.17x = 12,700,876,917.98
  5. Step 5: Solve for x
    x = 12,700,876,917.98/104,779.17
  6. Step 6: Final answer
    x = 121,215.67

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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.