Home / 127,080.21-175,391.72-70,509.81

Finding the Fourth Proportional to 127,080.21, 175,391.72 and 70,509.81

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Solution

The fourth proportional to 127,080.21, 175,391.72 and 70,509.81 is: 97,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,080.21 : 175,391.72 = 70,509.81 : x
  2. Step 2: Convert to fraction form
    127,080.21/175,391.72 = 70,509.81/x
  3. Step 3: Cross multiply
    127,080.21x = 175,391.72 × 70,509.81
  4. Step 4: Simplify right side
    127,080.21x = 12,366,836,500.22
  5. Step 5: Solve for x
    x = 12,366,836,500.22/127,080.21
  6. Step 6: Final answer
    x = 97,315.20

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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.