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Finding the Fourth Proportional to 125,004.58, 172,510.43 and 68,415.95

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Solution

The fourth proportional to 125,004.58, 172,510.43 and 68,415.95 is: 94,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,004.58 : 172,510.43 = 68,415.95 : x
  2. Step 2: Convert to fraction form
    125,004.58/172,510.43 = 68,415.95/x
  3. Step 3: Cross multiply
    125,004.58x = 172,510.43 × 68,415.95
  4. Step 4: Simplify right side
    125,004.58x = 11,802,464,953.36
  5. Step 5: Solve for x
    x = 11,802,464,953.36/125,004.58
  6. Step 6: Final answer
    x = 94,416.26

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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.