Home / 129,749.94-179,050.83-76,070.70

Finding the Fourth Proportional to 129,749.94, 179,050.83 and 76,070.70

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Solution

The fourth proportional to 129,749.94, 179,050.83 and 76,070.70 is: 104,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,749.94 : 179,050.83 = 76,070.70 : x
  2. Step 2: Convert to fraction form
    129,749.94/179,050.83 = 76,070.70/x
  3. Step 3: Cross multiply
    129,749.94x = 179,050.83 × 76,070.70
  4. Step 4: Simplify right side
    129,749.94x = 13,620,521,973.68
  5. Step 5: Solve for x
    x = 13,620,521,973.68/129,749.94
  6. Step 6: Final answer
    x = 104,975.17

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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.