Home / 130,750.20-180,447.48-77,051.88

Finding the Fourth Proportional to 130,750.20, 180,447.48 and 77,051.88

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Solution

The fourth proportional to 130,750.20, 180,447.48 and 77,051.88 is: 106,338.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,750.20 : 180,447.48 = 77,051.88 : x
  2. Step 2: Convert to fraction form
    130,750.20/180,447.48 = 77,051.88/x
  3. Step 3: Cross multiply
    130,750.20x = 180,447.48 × 77,051.88
  4. Step 4: Simplify right side
    130,750.20x = 13,903,817,575.26
  5. Step 5: Solve for x
    x = 13,903,817,575.26/130,750.20
  6. Step 6: Final answer
    x = 106,338.79

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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.