Home / 130,455.36-180,027.72-70,839.36

Finding the Fourth Proportional to 130,455.36, 180,027.72 and 70,839.36

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Solution

The fourth proportional to 130,455.36, 180,027.72 and 70,839.36 is: 97,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,455.36 : 180,027.72 = 70,839.36 : x
  2. Step 2: Convert to fraction form
    130,455.36/180,027.72 = 70,839.36/x
  3. Step 3: Cross multiply
    130,455.36x = 180,027.72 × 70,839.36
  4. Step 4: Simplify right side
    130,455.36x = 12,753,048,467.06
  5. Step 5: Solve for x
    x = 12,753,048,467.06/130,455.36
  6. Step 6: Final answer
    x = 97,757.95

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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.