Home / 191,961.19-264,547.72-138,152.79

Finding the Fourth Proportional to 191,961.19, 264,547.72 and 138,152.79

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Solution

The fourth proportional to 191,961.19, 264,547.72 and 138,152.79 is: 190,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,961.19 : 264,547.72 = 138,152.79 : x
  2. Step 2: Convert to fraction form
    191,961.19/264,547.72 = 138,152.79/x
  3. Step 3: Cross multiply
    191,961.19x = 264,547.72 × 138,152.79
  4. Step 4: Simplify right side
    191,961.19x = 36,548,005,778.83
  5. Step 5: Solve for x
    x = 36,548,005,778.83/191,961.19
  6. Step 6: Final answer
    x = 190,392.68

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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.