Home / 104,428.73-144,107.77-56,681.05

Finding the Fourth Proportional to 104,428.73, 144,107.77 and 56,681.05

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Solution

The fourth proportional to 104,428.73, 144,107.77 and 56,681.05 is: 78,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.73 : 144,107.77 = 56,681.05 : x
  2. Step 2: Convert to fraction form
    104,428.73/144,107.77 = 56,681.05/x
  3. Step 3: Cross multiply
    104,428.73x = 144,107.77 × 56,681.05
  4. Step 4: Simplify right side
    104,428.73x = 8,168,179,716.76
  5. Step 5: Solve for x
    x = 8,168,179,716.76/104,428.73
  6. Step 6: Final answer
    x = 78,217.74

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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.