Home / 125,017.94-172,490.64-71,283.36

Finding the Fourth Proportional to 125,017.94, 172,490.64 and 71,283.36

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Solution

The fourth proportional to 125,017.94, 172,490.64 and 71,283.36 is: 98,351.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.94 : 172,490.64 = 71,283.36 : x
  2. Step 2: Convert to fraction form
    125,017.94/172,490.64 = 71,283.36/x
  3. Step 3: Cross multiply
    125,017.94x = 172,490.64 × 71,283.36
  4. Step 4: Simplify right side
    125,017.94x = 12,295,712,387.75
  5. Step 5: Solve for x
    x = 12,295,712,387.75/125,017.94
  6. Step 6: Final answer
    x = 98,351.58

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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.