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Finding the Fourth Proportional to 124,516, 171,832.08 and 79,804

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Solution

The fourth proportional to 124,516, 171,832.08 and 79,804 is: 110,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,516 : 171,832.08 = 79,804 : x
  2. Step 2: Convert to fraction form
    124,516/171,832.08 = 79,804/x
  3. Step 3: Cross multiply
    124,516x = 171,832.08 × 79,804
  4. Step 4: Simplify right side
    124,516x = 13,712,887,312.32
  5. Step 5: Solve for x
    x = 13,712,887,312.32/124,516
  6. Step 6: Final answer
    x = 110,129.52

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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.