Home / 130,919.70-196,675.18-77,646.63

Finding the Fourth Proportional to 130,919.70, 196,675.18 and 77,646.63

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Solution

The fourth proportional to 130,919.70, 196,675.18 and 77,646.63 is: 116,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,919.70 : 196,675.18 = 77,646.63 : x
  2. Step 2: Convert to fraction form
    130,919.70/196,675.18 = 77,646.63/x
  3. Step 3: Cross multiply
    130,919.70x = 196,675.18 × 77,646.63
  4. Step 4: Simplify right side
    130,919.70x = 15,271,165,297.00
  5. Step 5: Solve for x
    x = 15,271,165,297.00/130,919.70
  6. Step 6: Final answer
    x = 116,645.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.