Home / 127,511.09-176,002.36-85,069.52

Finding the Fourth Proportional to 127,511.09, 176,002.36 and 85,069.52

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Solution

The fourth proportional to 127,511.09, 176,002.36 and 85,069.52 is: 117,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,511.09 : 176,002.36 = 85,069.52 : x
  2. Step 2: Convert to fraction form
    127,511.09/176,002.36 = 85,069.52/x
  3. Step 3: Cross multiply
    127,511.09x = 176,002.36 × 85,069.52
  4. Step 4: Simplify right side
    127,511.09x = 14,972,435,191.38
  5. Step 5: Solve for x
    x = 14,972,435,191.38/127,511.09
  6. Step 6: Final answer
    x = 117,420.66

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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.