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Finding the Fourth Proportional to 125,411.30, 173,056.15 and 74,415.24

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Solution

The fourth proportional to 125,411.30, 173,056.15 and 74,415.24 is: 102,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,411.30 : 173,056.15 = 74,415.24 : x
  2. Step 2: Convert to fraction form
    125,411.30/173,056.15 = 74,415.24/x
  3. Step 3: Cross multiply
    125,411.30x = 173,056.15 × 74,415.24
  4. Step 4: Simplify right side
    125,411.30x = 12,878,015,353.23
  5. Step 5: Solve for x
    x = 12,878,015,353.23/125,411.30
  6. Step 6: Final answer
    x = 102,686.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.