Home / 113,031.36-155,983.92-70,614.54

Finding the Fourth Proportional to 113,031.36, 155,983.92 and 70,614.54

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Solution

The fourth proportional to 113,031.36, 155,983.92 and 70,614.54 is: 97,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,031.36 : 155,983.92 = 70,614.54 : x
  2. Step 2: Convert to fraction form
    113,031.36/155,983.92 = 70,614.54/x
  3. Step 3: Cross multiply
    113,031.36x = 155,983.92 × 70,614.54
  4. Step 4: Simplify right side
    113,031.36x = 11,014,732,758.20
  5. Step 5: Solve for x
    x = 11,014,732,758.20/113,031.36
  6. Step 6: Final answer
    x = 97,448.47

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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.