Home / 124,515-171,830.70-67,926.60

Finding the Fourth Proportional to 124,515, 171,830.70 and 67,926.60

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Solution

The fourth proportional to 124,515, 171,830.70 and 67,926.60 is: 93,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,515 : 171,830.70 = 67,926.60 : x
  2. Step 2: Convert to fraction form
    124,515/171,830.70 = 67,926.60/x
  3. Step 3: Cross multiply
    124,515x = 171,830.70 × 67,926.60
  4. Step 4: Simplify right side
    124,515x = 11,671,875,226.62
  5. Step 5: Solve for x
    x = 11,671,875,226.62/124,515
  6. Step 6: Final answer
    x = 93,738.71

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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.