Home / 130,726.80-196,090.20-51,800.40

Finding the Fourth Proportional to 130,726.80, 196,090.20 and 51,800.40

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Solution

The fourth proportional to 130,726.80, 196,090.20 and 51,800.40 is: 77,700.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,726.80 : 196,090.20 = 51,800.40 : x
  2. Step 2: Convert to fraction form
    130,726.80/196,090.20 = 51,800.40/x
  3. Step 3: Cross multiply
    130,726.80x = 196,090.20 × 51,800.40
  4. Step 4: Simplify right side
    130,726.80x = 10,157,550,796.08
  5. Step 5: Solve for x
    x = 10,157,550,796.08/130,726.80
  6. Step 6: Final answer
    x = 77,700.60

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1.5x scale

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.