Home / 104,185.04-143,774.78-56,439.32

Finding the Fourth Proportional to 104,185.04, 143,774.78 and 56,439.32

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Solution

The fourth proportional to 104,185.04, 143,774.78 and 56,439.32 is: 77,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,185.04 : 143,774.78 = 56,439.32 : x
  2. Step 2: Convert to fraction form
    104,185.04/143,774.78 = 56,439.32/x
  3. Step 3: Cross multiply
    104,185.04x = 143,774.78 × 56,439.32
  4. Step 4: Simplify right side
    104,185.04x = 8,114,550,816.35
  5. Step 5: Solve for x
    x = 8,114,550,816.35/104,185.04
  6. Step 6: Final answer
    x = 77,885.95

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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.