Home / 191,921.12-264,898.60-130,768.40

Finding the Fourth Proportional to 191,921.12, 264,898.60 and 130,768.40

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Solution

The fourth proportional to 191,921.12, 264,898.60 and 130,768.40 is: 180,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,921.12 : 264,898.60 = 130,768.40 : x
  2. Step 2: Convert to fraction form
    191,921.12/264,898.60 = 130,768.40/x
  3. Step 3: Cross multiply
    191,921.12x = 264,898.60 × 130,768.40
  4. Step 4: Simplify right side
    191,921.12x = 34,640,366,084.24
  5. Step 5: Solve for x
    x = 34,640,366,084.24/191,921.12
  6. Step 6: Final answer
    x = 180,492.73

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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.