Home / 236,769.16-355,031.10-86,970.76

Finding the Fourth Proportional to 236,769.16, 355,031.10 and 86,970.76

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Solution

The fourth proportional to 236,769.16, 355,031.10 and 86,970.76 is: 130,411.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,769.16 : 355,031.10 = 86,970.76 : x
  2. Step 2: Convert to fraction form
    236,769.16/355,031.10 = 86,970.76/x
  3. Step 3: Cross multiply
    236,769.16x = 355,031.10 × 86,970.76
  4. Step 4: Simplify right side
    236,769.16x = 30,877,324,590.64
  5. Step 5: Solve for x
    x = 30,877,324,590.64/236,769.16
  6. Step 6: Final answer
    x = 130,411.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.