Home / 129,828.94-179,164.47-70,212.94

Finding the Fourth Proportional to 129,828.94, 179,164.47 and 70,212.94

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Solution

The fourth proportional to 129,828.94, 179,164.47 and 70,212.94 is: 96,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,828.94 : 179,164.47 = 70,212.94 : x
  2. Step 2: Convert to fraction form
    129,828.94/179,164.47 = 70,212.94/x
  3. Step 3: Cross multiply
    129,828.94x = 179,164.47 × 70,212.94
  4. Step 4: Simplify right side
    129,828.94x = 12,579,663,997.63
  5. Step 5: Solve for x
    x = 12,579,663,997.63/129,828.94
  6. Step 6: Final answer
    x = 96,894.15

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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.