Home / 120,574.43-180,899.29-72,595.63

Finding the Fourth Proportional to 120,574.43, 180,899.29 and 72,595.63

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Solution

The fourth proportional to 120,574.43, 180,899.29 and 72,595.63 is: 108,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,574.43 : 180,899.29 = 72,595.63 : x
  2. Step 2: Convert to fraction form
    120,574.43/180,899.29 = 72,595.63/x
  3. Step 3: Cross multiply
    120,574.43x = 180,899.29 × 72,595.63
  4. Step 4: Simplify right side
    120,574.43x = 13,132,498,749.75
  5. Step 5: Solve for x
    x = 13,132,498,749.75/120,574.43
  6. Step 6: Final answer
    x = 108,916.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.