Home / 125,880.40-173,700.70-74,194.12

Finding the Fourth Proportional to 125,880.40, 173,700.70 and 74,194.12

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Solution

The fourth proportional to 125,880.40, 173,700.70 and 74,194.12 is: 102,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,880.40 : 173,700.70 = 74,194.12 : x
  2. Step 2: Convert to fraction form
    125,880.40/173,700.70 = 74,194.12/x
  3. Step 3: Cross multiply
    125,880.40x = 173,700.70 × 74,194.12
  4. Step 4: Simplify right side
    125,880.40x = 12,887,570,579.88
  5. Step 5: Solve for x
    x = 12,887,570,579.88/125,880.40
  6. Step 6: Final answer
    x = 102,379.49

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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.