Home / 130,577.79-180,104.04-119,856.72

Finding the Fourth Proportional to 130,577.79, 180,104.04 and 119,856.72

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Solution

The fourth proportional to 130,577.79, 180,104.04 and 119,856.72 is: 165,316.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,577.79 : 180,104.04 = 119,856.72 : x
  2. Step 2: Convert to fraction form
    130,577.79/180,104.04 = 119,856.72/x
  3. Step 3: Cross multiply
    130,577.79x = 180,104.04 × 119,856.72
  4. Step 4: Simplify right side
    130,577.79x = 21,586,679,493.15
  5. Step 5: Solve for x
    x = 21,586,679,493.15/130,577.79
  6. Step 6: Final answer
    x = 165,316.62

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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.