Home / 130,474.51-180,090.26-76,776.79

Finding the Fourth Proportional to 130,474.51, 180,090.26 and 76,776.79

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Solution

The fourth proportional to 130,474.51, 180,090.26 and 76,776.79 is: 105,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,474.51 : 180,090.26 = 76,776.79 : x
  2. Step 2: Convert to fraction form
    130,474.51/180,090.26 = 76,776.79/x
  3. Step 3: Cross multiply
    130,474.51x = 180,090.26 × 76,776.79
  4. Step 4: Simplify right side
    130,474.51x = 13,826,751,689.18
  5. Step 5: Solve for x
    x = 13,826,751,689.18/130,474.51
  6. Step 6: Final answer
    x = 105,972.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.