Home / 127,611.54-176,100.93-71,021.70

Finding the Fourth Proportional to 127,611.54, 176,100.93 and 71,021.70

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Solution

The fourth proportional to 127,611.54, 176,100.93 and 71,021.70 is: 98,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,611.54 : 176,100.93 = 71,021.70 : x
  2. Step 2: Convert to fraction form
    127,611.54/176,100.93 = 71,021.70/x
  3. Step 3: Cross multiply
    127,611.54x = 176,100.93 × 71,021.70
  4. Step 4: Simplify right side
    127,611.54x = 12,506,987,420.18
  5. Step 5: Solve for x
    x = 12,506,987,420.18/127,611.54
  6. Step 6: Final answer
    x = 98,008.28

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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.