Home / 104,642.12-144,405.38-56,895.50

Finding the Fourth Proportional to 104,642.12, 144,405.38 and 56,895.50

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Solution

The fourth proportional to 104,642.12, 144,405.38 and 56,895.50 is: 78,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,642.12 : 144,405.38 = 56,895.50 : x
  2. Step 2: Convert to fraction form
    104,642.12/144,405.38 = 56,895.50/x
  3. Step 3: Cross multiply
    104,642.12x = 144,405.38 × 56,895.50
  4. Step 4: Simplify right side
    104,642.12x = 8,216,015,291.29
  5. Step 5: Solve for x
    x = 8,216,015,291.29/104,642.12
  6. Step 6: Final answer
    x = 78,515.38

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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.