Home / 125,289.18-172,894.50-68,699.34

Finding the Fourth Proportional to 125,289.18, 172,894.50 and 68,699.34

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Solution

The fourth proportional to 125,289.18, 172,894.50 and 68,699.34 is: 94,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,289.18 : 172,894.50 = 68,699.34 : x
  2. Step 2: Convert to fraction form
    125,289.18/172,894.50 = 68,699.34/x
  3. Step 3: Cross multiply
    125,289.18x = 172,894.50 × 68,699.34
  4. Step 4: Simplify right side
    125,289.18x = 11,877,738,039.63
  5. Step 5: Solve for x
    x = 11,877,738,039.63/125,289.18
  6. Step 6: Final answer
    x = 94,802.58

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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.