Home / 125,416.55-173,063.41-74,420.50

Finding the Fourth Proportional to 125,416.55, 173,063.41 and 74,420.50

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Solution

The fourth proportional to 125,416.55, 173,063.41 and 74,420.50 is: 102,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,416.55 : 173,063.41 = 74,420.50 : x
  2. Step 2: Convert to fraction form
    125,416.55/173,063.41 = 74,420.50/x
  3. Step 3: Cross multiply
    125,416.55x = 173,063.41 × 74,420.50
  4. Step 4: Simplify right side
    125,416.55x = 12,879,465,503.91
  5. Step 5: Solve for x
    x = 12,879,465,503.91/125,416.55
  6. Step 6: Final answer
    x = 102,693.51

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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.