Home / 104,715.91-144,507.90-56,969.20

Finding the Fourth Proportional to 104,715.91, 144,507.90 and 56,969.20

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Solution

The fourth proportional to 104,715.91, 144,507.90 and 56,969.20 is: 78,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,715.91 : 144,507.90 = 56,969.20 : x
  2. Step 2: Convert to fraction form
    104,715.91/144,507.90 = 56,969.20/x
  3. Step 3: Cross multiply
    104,715.91x = 144,507.90 × 56,969.20
  4. Step 4: Simplify right side
    104,715.91x = 8,232,499,456.68
  5. Step 5: Solve for x
    x = 8,232,499,456.68/104,715.91
  6. Step 6: Final answer
    x = 78,617.47

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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.