Home / 125,106.81-172,651.55-68,521.29

Finding the Fourth Proportional to 125,106.81, 172,651.55 and 68,521.29

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Solution

The fourth proportional to 125,106.81, 172,651.55 and 68,521.29 is: 94,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,106.81 : 172,651.55 = 68,521.29 : x
  2. Step 2: Convert to fraction form
    125,106.81/172,651.55 = 68,521.29/x
  3. Step 3: Cross multiply
    125,106.81x = 172,651.55 × 68,521.29
  4. Step 4: Simplify right side
    125,106.81x = 11,830,306,583.89
  5. Step 5: Solve for x
    x = 11,830,306,583.89/125,106.81
  6. Step 6: Final answer
    x = 94,561.65

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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.