Home / 104,656.06-144,428.10-56,912.20

Finding the Fourth Proportional to 104,656.06, 144,428.10 and 56,912.20

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Solution

The fourth proportional to 104,656.06, 144,428.10 and 56,912.20 is: 78,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,656.06 : 144,428.10 = 56,912.20 : x
  2. Step 2: Convert to fraction form
    104,656.06/144,428.10 = 56,912.20/x
  3. Step 3: Cross multiply
    104,656.06x = 144,428.10 × 56,912.20
  4. Step 4: Simplify right side
    104,656.06x = 8,219,720,912.82
  5. Step 5: Solve for x
    x = 8,219,720,912.82/104,656.06
  6. Step 6: Final answer
    x = 78,540.32

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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.