Home / 199,390.86-275,089.91-127,810.35

Finding the Fourth Proportional to 199,390.86, 275,089.91 and 127,810.35

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Solution

The fourth proportional to 199,390.86, 275,089.91 and 127,810.35 is: 176,333.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,390.86 : 275,089.91 = 127,810.35 : x
  2. Step 2: Convert to fraction form
    199,390.86/275,089.91 = 127,810.35/x
  3. Step 3: Cross multiply
    199,390.86x = 275,089.91 × 127,810.35
  4. Step 4: Simplify right side
    199,390.86x = 35,159,337,039.52
  5. Step 5: Solve for x
    x = 35,159,337,039.52/199,390.86
  6. Step 6: Final answer
    x = 176,333.74

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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.