Home / 261,053.13-391,388.18-83,457.93

Finding the Fourth Proportional to 261,053.13, 391,388.18 and 83,457.93

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Solution

The fourth proportional to 261,053.13, 391,388.18 and 83,457.93 is: 125,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,053.13 : 391,388.18 = 83,457.93 : x
  2. Step 2: Convert to fraction form
    261,053.13/391,388.18 = 83,457.93/x
  3. Step 3: Cross multiply
    261,053.13x = 391,388.18 × 83,457.93
  4. Step 4: Simplify right side
    261,053.13x = 32,664,446,911.98
  5. Step 5: Solve for x
    x = 32,664,446,911.98/261,053.13
  6. Step 6: Final answer
    x = 125,125.67

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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.