Home / 191,380.59-286,779.83-91,403.10

Finding the Fourth Proportional to 191,380.59, 286,779.83 and 91,403.10

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Solution

The fourth proportional to 191,380.59, 286,779.83 and 91,403.10 is: 136,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,380.59 : 286,779.83 = 91,403.10 : x
  2. Step 2: Convert to fraction form
    191,380.59/286,779.83 = 91,403.10/x
  3. Step 3: Cross multiply
    191,380.59x = 286,779.83 × 91,403.10
  4. Step 4: Simplify right side
    191,380.59x = 26,212,565,022.46
  5. Step 5: Solve for x
    x = 26,212,565,022.46/191,380.59
  6. Step 6: Final answer
    x = 136,965.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.