Home / 98,712.03-136,222.19-53,390.06

Finding the Fourth Proportional to 98,712.03, 136,222.19 and 53,390.06

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Solution

The fourth proportional to 98,712.03, 136,222.19 and 53,390.06 is: 73,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,712.03 : 136,222.19 = 53,390.06 : x
  2. Step 2: Convert to fraction form
    98,712.03/136,222.19 = 53,390.06/x
  3. Step 3: Cross multiply
    98,712.03x = 136,222.19 × 53,390.06
  4. Step 4: Simplify right side
    98,712.03x = 7,272,910,897.43
  5. Step 5: Solve for x
    x = 7,272,910,897.43/98,712.03
  6. Step 6: Final answer
    x = 73,678.06

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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.