Home / 125,289.72-172,908.54-68,704.74

Finding the Fourth Proportional to 125,289.72, 172,908.54 and 68,704.74

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Solution

The fourth proportional to 125,289.72, 172,908.54 and 68,704.74 is: 94,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,289.72 : 172,908.54 = 68,704.74 : x
  2. Step 2: Convert to fraction form
    125,289.72/172,908.54 = 68,704.74/x
  3. Step 3: Cross multiply
    125,289.72x = 172,908.54 × 68,704.74
  4. Step 4: Simplify right side
    125,289.72x = 11,879,636,284.48
  5. Step 5: Solve for x
    x = 11,879,636,284.48/125,289.72
  6. Step 6: Final answer
    x = 94,817.33

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1.5x scale

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.