Home / 127,509.72-176,000.46-85,068.14

Finding the Fourth Proportional to 127,509.72, 176,000.46 and 85,068.14

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Solution

The fourth proportional to 127,509.72, 176,000.46 and 85,068.14 is: 117,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,509.72 : 176,000.46 = 85,068.14 : x
  2. Step 2: Convert to fraction form
    127,509.72/176,000.46 = 85,068.14/x
  3. Step 3: Cross multiply
    127,509.72x = 176,000.46 × 85,068.14
  4. Step 4: Simplify right side
    127,509.72x = 14,972,031,771.34
  5. Step 5: Solve for x
    x = 14,972,031,771.34/127,509.72
  6. Step 6: Final answer
    x = 117,418.75

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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.