Home / 125,106.81-172,649.12-68,518.59

Finding the Fourth Proportional to 125,106.81, 172,649.12 and 68,518.59

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Solution

The fourth proportional to 125,106.81, 172,649.12 and 68,518.59 is: 94,556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,106.81 : 172,649.12 = 68,518.59 : x
  2. Step 2: Convert to fraction form
    125,106.81/172,649.12 = 68,518.59/x
  3. Step 3: Cross multiply
    125,106.81x = 172,649.12 × 68,518.59
  4. Step 4: Simplify right side
    125,106.81x = 11,829,673,924.55
  5. Step 5: Solve for x
    x = 11,829,673,924.55/125,106.81
  6. Step 6: Final answer
    x = 94,556.59

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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.