Home / 130,550.30-180,116.87-76,090.04

Finding the Fourth Proportional to 130,550.30, 180,116.87 and 76,090.04

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Solution

The fourth proportional to 130,550.30, 180,116.87 and 76,090.04 is: 104,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,550.30 : 180,116.87 = 76,090.04 : x
  2. Step 2: Convert to fraction form
    130,550.30/180,116.87 = 76,090.04/x
  3. Step 3: Cross multiply
    130,550.30x = 180,116.87 × 76,090.04
  4. Step 4: Simplify right side
    130,550.30x = 13,705,098,561.94
  5. Step 5: Solve for x
    x = 13,705,098,561.94/130,550.30
  6. Step 6: Final answer
    x = 104,979.45

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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.