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Finding the Fourth Proportional to 104,247, 143,860.05 and 56,499.12

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Solution

The fourth proportional to 104,247, 143,860.05 and 56,499.12 is: 77,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,247 : 143,860.05 = 56,499.12 : x
  2. Step 2: Convert to fraction form
    104,247/143,860.05 = 56,499.12/x
  3. Step 3: Cross multiply
    104,247x = 143,860.05 × 56,499.12
  4. Step 4: Simplify right side
    104,247x = 8,127,966,228.16
  5. Step 5: Solve for x
    x = 8,127,966,228.16/104,247
  6. Step 6: Final answer
    x = 77,968.35

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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.