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Finding the Fourth Proportional to 104,281.60, 143,908.80 and 56,534.80

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Solution

The fourth proportional to 104,281.60, 143,908.80 and 56,534.80 is: 78,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,281.60 : 143,908.80 = 56,534.80 : x
  2. Step 2: Convert to fraction form
    104,281.60/143,908.80 = 56,534.80/x
  3. Step 3: Cross multiply
    104,281.60x = 143,908.80 × 56,534.80
  4. Step 4: Simplify right side
    104,281.60x = 8,135,855,226.24
  5. Step 5: Solve for x
    x = 8,135,855,226.24/104,281.60
  6. Step 6: Final answer
    x = 78,018.13

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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.