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Finding the Fourth Proportional to 104,064, 143,608.77 and 56,317.35

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Solution

The fourth proportional to 104,064, 143,608.77 and 56,317.35 is: 77,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,064 : 143,608.77 = 56,317.35 : x
  2. Step 2: Convert to fraction form
    104,064/143,608.77 = 56,317.35/x
  3. Step 3: Cross multiply
    104,064x = 143,608.77 × 56,317.35
  4. Step 4: Simplify right side
    104,064x = 8,087,665,363.16
  5. Step 5: Solve for x
    x = 8,087,665,363.16/104,064
  6. Step 6: Final answer
    x = 77,718.19

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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.