Home / 186,279.48-279,335.15-53,128.08

Finding the Fourth Proportional to 186,279.48, 279,335.15 and 53,128.08

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Solution

The fourth proportional to 186,279.48, 279,335.15 and 53,128.08 is: 79,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,279.48 : 279,335.15 = 53,128.08 : x
  2. Step 2: Convert to fraction form
    186,279.48/279,335.15 = 53,128.08/x
  3. Step 3: Cross multiply
    186,279.48x = 279,335.15 × 53,128.08
  4. Step 4: Simplify right side
    186,279.48x = 14,840,540,196.01
  5. Step 5: Solve for x
    x = 14,840,540,196.01/186,279.48
  6. Step 6: Final answer
    x = 79,668.14

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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.