Home / 191,953.60-264,828-128,331.52

Finding the Fourth Proportional to 191,953.60, 264,828 and 128,331.52

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Solution

The fourth proportional to 191,953.60, 264,828 and 128,331.52 is: 177,052.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,953.60 : 264,828 = 128,331.52 : x
  2. Step 2: Convert to fraction form
    191,953.60/264,828 = 128,331.52/x
  3. Step 3: Cross multiply
    191,953.60x = 264,828 × 128,331.52
  4. Step 4: Simplify right side
    191,953.60x = 33,985,779,778.56
  5. Step 5: Solve for x
    x = 33,985,779,778.56/191,953.60
  6. Step 6: Final answer
    x = 177,052.06

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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.