Home / 125,313.07-172,894.24-76,865.20

Finding the Fourth Proportional to 125,313.07, 172,894.24 and 76,865.20

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Solution

The fourth proportional to 125,313.07, 172,894.24 and 76,865.20 is: 106,050.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,313.07 : 172,894.24 = 76,865.20 : x
  2. Step 2: Convert to fraction form
    125,313.07/172,894.24 = 76,865.20/x
  3. Step 3: Cross multiply
    125,313.07x = 172,894.24 × 76,865.20
  4. Step 4: Simplify right side
    125,313.07x = 13,289,550,336.45
  5. Step 5: Solve for x
    x = 13,289,550,336.45/125,313.07
  6. Step 6: Final answer
    x = 106,050.79

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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.