Home / 210,124.36-289,889.08-129,411.81

Finding the Fourth Proportional to 210,124.36, 289,889.08 and 129,411.81

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Solution

The fourth proportional to 210,124.36, 289,889.08 and 129,411.81 is: 178,537.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,124.36 : 289,889.08 = 129,411.81 : x
  2. Step 2: Convert to fraction form
    210,124.36/289,889.08 = 129,411.81/x
  3. Step 3: Cross multiply
    210,124.36x = 289,889.08 × 129,411.81
  4. Step 4: Simplify right side
    210,124.36x = 37,515,070,218.51
  5. Step 5: Solve for x
    x = 37,515,070,218.51/210,124.36
  6. Step 6: Final answer
    x = 178,537.46

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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.