Home / 128,201.01-176,913.67-70,839.42

Finding the Fourth Proportional to 128,201.01, 176,913.67 and 70,839.42

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Solution

The fourth proportional to 128,201.01, 176,913.67 and 70,839.42 is: 97,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,201.01 : 176,913.67 = 70,839.42 : x
  2. Step 2: Convert to fraction form
    128,201.01/176,913.67 = 70,839.42/x
  3. Step 3: Cross multiply
    128,201.01x = 176,913.67 × 70,839.42
  4. Step 4: Simplify right side
    128,201.01x = 12,532,461,772.87
  5. Step 5: Solve for x
    x = 12,532,461,772.87/128,201.01
  6. Step 6: Final answer
    x = 97,756.34

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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.