Home / 210,141.09-289,994.78-134,689.59

Finding the Fourth Proportional to 210,141.09, 289,994.78 and 134,689.59

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Solution

The fourth proportional to 210,141.09, 289,994.78 and 134,689.59 is: 185,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,141.09 : 289,994.78 = 134,689.59 : x
  2. Step 2: Convert to fraction form
    210,141.09/289,994.78 = 134,689.59/x
  3. Step 3: Cross multiply
    210,141.09x = 289,994.78 × 134,689.59
  4. Step 4: Simplify right side
    210,141.09x = 39,059,277,346.89
  5. Step 5: Solve for x
    x = 39,059,277,346.89/210,141.09
  6. Step 6: Final answer
    x = 185,871.68

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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.