Home / 130,654.60-180,316.74-76,956.52

Finding the Fourth Proportional to 130,654.60, 180,316.74 and 76,956.52

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Solution

The fourth proportional to 130,654.60, 180,316.74 and 76,956.52 is: 106,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,654.60 : 180,316.74 = 76,956.52 : x
  2. Step 2: Convert to fraction form
    130,654.60/180,316.74 = 76,956.52/x
  3. Step 3: Cross multiply
    130,654.60x = 180,316.74 × 76,956.52
  4. Step 4: Simplify right side
    130,654.60x = 13,876,548,808.14
  5. Step 5: Solve for x
    x = 13,876,548,808.14/130,654.60
  6. Step 6: Final answer
    x = 106,207.89

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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.