Home / 127,064.40-190,356.04-84,817.10

Finding the Fourth Proportional to 127,064.40, 190,356.04 and 84,817.10

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Solution

The fourth proportional to 127,064.40, 190,356.04 and 84,817.10 is: 127,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,064.40 : 190,356.04 = 84,817.10 : x
  2. Step 2: Convert to fraction form
    127,064.40/190,356.04 = 84,817.10/x
  3. Step 3: Cross multiply
    127,064.40x = 190,356.04 × 84,817.10
  4. Step 4: Simplify right side
    127,064.40x = 16,145,447,280.28
  5. Step 5: Solve for x
    x = 16,145,447,280.28/127,064.40
  6. Step 6: Final answer
    x = 127,065.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.