Home / 127,664.40-176,172.12-71,074.56

Finding the Fourth Proportional to 127,664.40, 176,172.12 and 71,074.56

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Solution

The fourth proportional to 127,664.40, 176,172.12 and 71,074.56 is: 98,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,664.40 : 176,172.12 = 71,074.56 : x
  2. Step 2: Convert to fraction form
    127,664.40/176,172.12 = 71,074.56/x
  3. Step 3: Cross multiply
    127,664.40x = 176,172.12 × 71,074.56
  4. Step 4: Simplify right side
    127,664.40x = 12,521,355,913.27
  5. Step 5: Solve for x
    x = 12,521,355,913.27/127,664.40
  6. Step 6: Final answer
    x = 98,080.25

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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.