Home / 125,895.58-173,730.36-72,177.40

Finding the Fourth Proportional to 125,895.58, 173,730.36 and 72,177.40

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Solution

The fourth proportional to 125,895.58, 173,730.36 and 72,177.40 is: 99,601.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,895.58 : 173,730.36 = 72,177.40 : x
  2. Step 2: Convert to fraction form
    125,895.58/173,730.36 = 72,177.40/x
  3. Step 3: Cross multiply
    125,895.58x = 173,730.36 × 72,177.40
  4. Step 4: Simplify right side
    125,895.58x = 12,539,405,685.86
  5. Step 5: Solve for x
    x = 12,539,405,685.86/125,895.58
  6. Step 6: Final answer
    x = 99,601.64

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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.