Home / 104,257.89-143,876.66-56,511.59

Finding the Fourth Proportional to 104,257.89, 143,876.66 and 56,511.59

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Solution

The fourth proportional to 104,257.89, 143,876.66 and 56,511.59 is: 77,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,257.89 : 143,876.66 = 56,511.59 : x
  2. Step 2: Convert to fraction form
    104,257.89/143,876.66 = 56,511.59/x
  3. Step 3: Cross multiply
    104,257.89x = 143,876.66 × 56,511.59
  4. Step 4: Simplify right side
    104,257.89x = 8,130,697,818.55
  5. Step 5: Solve for x
    x = 8,130,697,818.55/104,257.89
  6. Step 6: Final answer
    x = 77,986.40

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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.