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Finding the Fourth Proportional to 104,521, 144,241.60 and 56,774.32

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Solution

The fourth proportional to 104,521, 144,241.60 and 56,774.32 is: 78,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,521 : 144,241.60 = 56,774.32 : x
  2. Step 2: Convert to fraction form
    104,521/144,241.60 = 56,774.32/x
  3. Step 3: Cross multiply
    104,521x = 144,241.60 × 56,774.32
  4. Step 4: Simplify right side
    104,521x = 8,189,218,755.71
  5. Step 5: Solve for x
    x = 8,189,218,755.71/104,521
  6. Step 6: Final answer
    x = 78,349.98

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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.